AJD88TA

i have a 1988 trans am with the 305tbi, yes i know i can swap a 350 into it for the same amount of money, i want to use the 305. just wondering some simple mods to increase power, thanks

TylerSteez

iTrader: (3)

the only mods that will make a big difference in power is cam and heads but those aren't really "simple mods". and if you were gonna go through with pulling the heads off then why not just pull the block out and put in a 350.

Most people are gonna tell you to put headers and an exhaust on it but its not really gonna do too much for you in terms of a power increase.

why do you want to use the 305?

AJD88TA

i want to keep the car original, it is a 305tbi car, i dont really want to change that. im getting an exhaust done soon (deleting cat and installing a magnaflow muffler) so it should in a sense sound faster, idk i dont mind the 305, ive had this car since i was 6 years old, and im 17 now so i enjoy driving it, im definitely the only one pulling up in a 3rd gen to school haha, and im very proud of that

2knight

iTrader: (1)

before I swapped to 350, I put 1.6 ratio roller rockers, removed the cat, installed hooker shorty headers and 3" exhaust and that made a huge improvement, I think a good free flowing exhaust and a little more valve lift will give you the performance your looking for without tearing down the engine and at the same time keeping it original.

Schurkey

Do you people have any idea what the word "original" means?

Let me give you a hint. If you're talking about modifying the car, you're NOT talking about keeping it original. It can be modified, or it can be original, but it can not be both.

This is like hearing people talk about "restoring" a car, and then they give you a list of thirty things they're going to customize.

AJD88TA

i dont necessarily want to keep it all original down to a little screw under the dash, i just would like to keep the 305, do an exhaust, keep the exterior nice no stupid wing or paint job, just the original color (red with silver ground effects) with the GTA spoiler and GTA wheels with a lowering kit. i dont plan on ever selling this car so im not trying to use it as an investment and keep it 100% original. you know what i mean?

TylerSteez

iTrader: (3)

TylerSteez

iTrader: (3)

dmccain

iTrader: (2)

3.42-3.73 gears, mild S10 torque converter, shift kit, good 3in exhaust. It will feel like a different car.

ShiftyCapone

iTrader: (7)

As others have mentioned, you will want to address the exhaust. You certainly can cam these motors but you will need to learn how to tune the chip. Mail order won't work and the stock tune cannot accept any cam deviation from stock. Your car will be slower with mods and no tune.