91 firebird

[91fire]

hey i need some help. i have a 91 firebird but the motor blew so im planning on taking the motor out of an 87 trans am 305 tpi but i want to modify it to give it some more horsepower i want to spend between 1000 to 2000 any advice would be helpful

[CreepingDeath94]

What motor did the car originally have? If you are changing it from a non TPI to TPI you might need to spend a fair amount of that money just changing things over to accept the TPI 305. Other than that, you can always increase flow with exhaust, get a bigger Throttle body, and maybe increase the fuel injectors depending on what kind of changes would need to be made for the computer to usefully incorporate the larger flow injectors.

[91fire]

it originaly had a 305 but the guy i bought it from converted it to a 350 tpi but obviously didnt know how to do it because he wired it like crap and broke a couple of head bolts

[CreepingDeath94]

Id just keep in mind that some money may be involved in putting that motor in before going too crazy with the tweaking of the 305 is all.

[91fire]

well im putting it in myself so it wont be that much and im takin it all out of the ta with the harness and computers

[91fire]

also im thinking of converting it to a lt1 depending on the cost it will be and if it would actually be worth the price

[FormulaLT1]

You can give a TPI engine a LT1 style intake but you can't turn a Gen 1 small block into a LT1 style Gen 2 small block.

I would recommend installing a cam and do some head porting or swap before the install. and Headers and catback exhaust wouldn't hurt either. Throw in a set or 3.73's and your good to go.

[91fire]

i meant just putting a whole new engine in

[FormulaLT1]

well then check www.car-part.com and www.ebay.com . See what you can come up with but with a small investment you can make the TPI just as fast as a LT1 would be

[91fire]

well if i do drop a tpi i can just use my cam and heads from my old motor

[hotrod_chevyz]

Putting a noisy muffler will do nothing more than grab attention,and maybe not the kind you want.
Bore it out and install flat top pistons.get some heads with bigger valves, and have the heads milled and custom valve springs installed.put a Carter AFB competition series carb on it,and a aftermarket RPM intake manifold.Then get a competition cam,roller rockers,mechanical lifters,and hooker headers.put a regular HEI distributor and dual exaust.then you will not have to worry about a computer anymore.it will be all in the name of horsepower.