250-300 horsepower out of a 305 tbi.
Thread Starter
Junior Member
Joined: Jun 2012
Posts: 5
Likes: 0
From: Cape may, NJ
Car: 1986 Monte Carlo ss. 1991 firebird
Engine: 350 vortec. 305 TBI
Transmission: 700r4. 700r4
Axle/Gears: 373. Not sure
250-300 horsepower out of a 305 tbi.
I am aware of the many threads about making power out of the tbi engines and that it is unpractical to try to make horsepower out of the 305's (switched the 305 out to a 350 in my Monte Carlo SS) but this firebird is a everyday driver and i want to keep my gas mileage and get some real performance out of it. I am open to any suggestions.
Thank you
Thank you
Senior Member
Joined: Feb 2009
Posts: 885
Likes: 0
From: USA
Car: 1989 SS
Engine: LT1+1500$ hooker exhaust
Transmission: T56
Axle/Gears: 3.42 bogger
Re: 250-300 horsepower out of a 305 tbi.
If it's a 305tbi your looking at 3k easy. enough to get an ls1. It's that bad man.
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