351

ok i was woundering if it would be easer to bild a carb engine in stead of a injected, and i need no know like what ill need and what i will need to modify it so it will fin in my 1990 ford mustang gt, right now it has a 302 but im going to be putting the 351 in in, also superchargers what is a good supercharger i could get the ones that sin on top of the intakemanfold, (dont know the exact name) i was think of getting one of those race scoops with the 3 red plates that open and shut, im not a conpleate noob with the fuel injected, but ive never tuched a carb in my life, would it be cheaper to bild the injected engine or the carb, im leaning more tords the carb thanks.

Cheaper to build an injected motor than a 351 with a 6-71 blower on it. There's a bit more than that. You'd have over 1500 bucks in carbs, unless you use a smaller weiand single-carb roots blower, which means a 950 carb, still a 750-900 dollar carburetor. Not to mention if you tune it right, you're looking at well over 500 HP, which throws out a stock block, now you need a 1000 dollar or more block with internals to match. You're talking a lot of money, even if you shop around.

I wouldn't bolt on a roots SC if I didn't even know what it was called.....

Research, bud, research...

Not to push any button SVT but he could get a 750cfm Mighty Demon blower prepped draw thrue carb for $532.99 I think I payed at Jegs. Had to send it back because I was supposed to be getting a blow thrue carb. However the roots blower and the intake needed wouldnt be cheap. Build a motor somewhat like mine if you want lol. Although I'm useing a centrifugal blower and not a roots style. Still 500-600 rwhp on stock block/crank. Just be carefull with your tune. Keep the R's low, the timing down, and the a/f safe.

so what kind of carb would i need i, do plan on putting a new block and forged internals the hole works, i was just wounder wich would be cheaper to bild up a injected witha vortec supercharger or a carb with a root sc. how hard would it be to put a carb in my 1990 mustang fuel injected, like what would i have to get that i dont have in the car right now.

I thought you had money?

Roots are on all the time, it will suck the gas, plus with the carb even less MPG. But to build the carb is way cheaper, plus you can tune it yourself with an EGT and a wide band.

You can build a vortech with everything for FI for less than 4k, if you shop around. MAF, injectors, S-Trim, etc.

What intake and heads do you have?

im bilding a hole new engine i dont know witch heads im going to be getting same with intake and that depends on if i go carb or fuel injected. ic what your saying about the roots charger being on all the time and sucking the gas. like how many miles do you think ill get.

Carb, lucky to get 14mpg


My Vortech S-Trimed Stang could get 22mpg on the highway.

how many miles do you think i get now i have a 302 with 137,000 miles on it, with cold air intake flowmaster bbk headers and x pipe, msd 6++ ignition and msd coil, i dont think i get vary much tho i think my engine is messedup or out of tune,

how many miles do you think i get now i have a 302 with 137,000 miles on it, with cold air intake flowmaster bbk headers and x pipe, msd 6++ ignition and msd coil, i dont think i get vary much tho i think my engine is messedup or out of tune,
Depends on the history of the motor. Some 5.0's can easily make it over 200k miles, some crap out at under 100k. Currently, my 92 has 140k and it still runs very smooth and strong.

Im going to go carb, is this a good setup, cam the (TFS Stage 2) with the kb dished pistons(unless there is a better kind, any sugestions) with the 58cc head for a 9:1, also the H-Beam Super Racing Rods, with the twisted edge heads, with a 392 block, is this a good setup for the carb engine, and then i will need a carb or duel carbs and intake with the roots blower, i dont care about mpg, so i need some help on witch carb and blower i should get, thanks.

Holley and Demon both sell draw thru blower prepped carbs for around $500. Thats not a bad price at all. The cam is a pretty good blower cam from what I understand. I'm not a fan of kb pistons. I got my probe pistons for about $450. If your going with H-beam rods the least you can do is forged pistons instead of hypers. What are the flow numbers on the tw heads? The heads really depend on your budget. I bought Edel. Performer RPM heads and wish I had gone with Vic Jr's or TFS Hi-ports. The blower depends on how much power you want. If your set on a specific psi of boost say 10psi then buy a blower that will give you some room to grow. Your gonna be spending a ton of money on the blower, spend a little more and get a blower that will allow you to take it to the next level.

Not to push any button SVT but he could get a 750cfm Mighty Demon blower prepped draw thrue carb for $532.99 I think I payed at Jegs. Had to send it back because I was supposed to be getting a blow thrue carb.

Guess I didn't check before I opened my mouth. Thanks for settin' me straight..... :)

Draw through suck:D

They have huge starting issues along with other crap to deal with. Blow through is the only for me.

Draw through suck:D

They have huge starting issues along with other crap to deal with. Blow through is the only for me.
:1:

:1:

I have taught you well young jedi :D

one of these carbs http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=255272&prmenbr=361 witch size should i get, also should i go duel or not.

what about afr do they have good heads

i was looking on jegs and the only kind of roots style blowers they have are for chevy, any good web sites you could sugjest, yeah i would like to get one that could go to the next step, if i wanted to.

BG/Demon is not a bad carb. You either hate them or love them. I would go with a single carb 750cfm.

AFR heads imho are the best out of the box performance sbf heads on the market.

You may want to consider saving money in the long run, and building a more reliable car with better driveability and just as much or more power. Build a blow thru. Call CSU if you would like to talk to the guys that build all kinds of carbs for all kinds of applications, blow thru being one of them. Not to mention these guys have the absolute best customer service out there. www.csucarbs.com

would duel give me more power or what, would it just be a hassel tunning them in the long run.

Have 2 4bbl carbs instead of one will be more trouble than its worth with the current technology and no more power than you are going for. Just remember one thing, Keep It Simple! Just use a single 750 for ease of tuning and reliability.

You can make over a 1000hp with a single.

As for the heads, I bought AFR 205s, but if I could do it all over again I would have went with TFS high ports. Either set, will work fine.

ok what about the super charger i can only find chevy root style super chargers, and most of them dont even tell me the psi or any thing, wich one should i get i dont want to make over 600hp im going to be getting the tko 600 that can handle 600hp and i dont want to blow it up, unless they can actully handle more, what do you guys think.

Look at 351WStangs sig, that is a very good combo.

:biggrin:

yes ic i need a roots supercharger tho,

yes ic i need a roots supercharger tho,

Is there a reason that you must have a roots style blower or is that just what you prefer? I agree it would look pretty cool. But the days of tunnel rams and blower scoops poking up thrue the hood where back in the 80's lol. I thought about a roots blower, but finding the right blower and then the right intake was getting annoying. Seems like I saw tons of chevy stuff and the ford stuff I did see was for EFI. I knoarbw they make a sbf roots style blower for a carb'd application, I just never found it. I didnt look very long though before I went with blow thru.

Aslo, what makes you prefer hi ports over the 205's Tony?

Aslo, what makes you prefer hi ports over the 205's Tony?

Just some issues that one of my friends was telling me about the AFRs. The AFRs have issues with over 20lbs of boost. I do not plan on going that high, but it would be nice to know that the heads were good for that. He ran both AFR and TFS on his Stang, and said the TFS were the way to go, but like I said, both will work.

Why does someone have to run a roots? You don't have any parts yet, so how could that be the case?

I see. The TFS heads are cheaper too. Are the hi ports a better head for boost than the R's? Also whats the exhaust a/r on your turbo?

i just wanted a race soop with the 3 red tb looking things, just thought it would look bad ass.

i just wanted a race soop with the 3 red tb looking things, just thought it would look bad ass.

Yes it would look badass depending on the year of your car? But also remember that you will generally spend alot of time tunning a constantly fixing with a draw thrue setup. You look at that '34 roadsters with the roots blown 350 at all the hotrod shows. The one with 3 old men around it tryin to get it started. Thats just typical of draw thrue setups. That is part of the reason Skyline and I are advising that you to consider blow thru. I guess the questions you need to ask yourself are: How often do I want to drive this car? How far do I want to drive this car? How much $$ do I have for this car? And last but not least, do you want your car to look better? Or run better? Its up to you. You can have a cool clean looking badass street car, or a badass looking sometimes running always tuning street car. Talk to people who have built the kind of motor you are wanting to build with the roots blower. Then talk to people who have built blow thru turbo or supercharged motors. Then decide what you would prefer.

To be honest with you I wish I had done more research before I bought my blower. I could have gotten it cheaper, or preferably gone turbo. I would have no worries about my front main bearing if I had gone with a turbo. I wont be keeping the blower long after my car is running, atleast thats how I'm feeling now. All this may change when I drive the car for the first time. We will just have to see. But good luck to you in whatever form of power you go for. They each have their perks.

ok thanks

I see. The TFS heads are cheaper too. Are the hi ports a better head for boost than the R's? Also whats the exhaust a/r on your turbo?

Which is better? I really could not say. Go look at TM and see what they have for info. After I bought the 205s, I stopped looking at heads.

To tell you the truth, I am not sure what the A/R is, I'll take a measurement to day.