350 swap

[tcfco2005]

i know this topic has been brought up alot but i cant fing the answer im looking for in all the old threads. my question is what is everything i need to do a 305tbi to a 350 carb. swap. A list would be nice. thanks

[Link85x]

Dude, you got the pic in the sig! Good sh**!!! I know i'm gonna do a swap but thats in the far future, or unless my motor blows. But honestly, i think since you have the tbi setup, all you would need is the motor, cuz it should just bolt right in. You probably don't have to change the fuel lines or any of that stuff. If i'm wrong someone will correct soon, but if im right

[KPot2004]

if i were you i would stick with tbi

[tcfco2005]

y would you stick with tbi. just want to know

[Savage Messiah]

In general EFI is more reliable and more efficient

[Savage Messiah]

BTW thats a very nice very clean 3rd gen!!

[tcfco2005]

thanks, and is there a real power difference between EFI and carbs

[89IROC&RS]

no real power difference between the two. the main difference is the accuracy of fuel delivery provided by the EFI which lowers emissions and improoves gas mileage.

[tcfco2005]

89iroc i was wondering what all i need for a 305tbi to a 350 carb swap is what link said all i need, which is nothing really

[89IROC&RS]

well, pretty much when going from the 305 to 350 you only need to change the fuel delivery systems to match the demands of the larger engine.

as far as the TBI to carb swap because your bypassing the electronics it will run with just the carb, however youll have to put a new pressure regulator on the fuel line to lower the PSI from the 40psi of the electronic pump down to a carb friendly 5psi or so. this will also require putting a direct power switch to the fuel pump as the computer will no longer send a signal to it to power on.

[tcfco2005]

as far as computer stuff and sensors what can i loose and what should i keep

[tcfco2005]

and will i be able to keep my 700-r4, i plan on rebuilding it if i can still use it for the 350

[KPot2004]

i tried doing the exact same thing and pretty much wasted a lot of money. i boguht a mallory 4309 fuel pressure regualtor and an holley 600cfm 4 barrel, and a hei distributor and i could never get it to run right. went to advance auto and bought a tbi adaptor plate and it fired right up, no problems at all. it was the biggest mistake I have ever made the tbi is sooooo much more reliable and efficient. you can make a lot of power with the tbi engine too

http://www.goingfaster.com/spo/modthel03.html

[tcfco2005]

so basically what your saying is to just through a tbi on top instead of the carburator

[tcfco2005]

so basically i should just throw a tbi on top instead of a carb