305 vs. 350
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305 vs. 350
My 88 GTA came with the 305 TPI, i think its 230hp i was just curious how much different the 350 was over the 305? i think there was like a 10hp differnce and a little more than 10#'s on the torque. also how much of a increase do the vortecs bring with the aftermarket lower intake?
Joined: Mar 2000
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
In '88, it was 220/290 for the 305, and 230/330 for the 350. https://www.thirdgen.org/1988-pontiac-firebird
Vortecs would bring a noticeable jump. I'd go with upgraded parts from sdparts.com, personally. http://www.sdparts.com/product/SD806...keHeaders.aspx
To get the most out of it, full exhaust (headers, high flow cat, cat-back) and cam (such as LT4 Hot Cam) would be required. That's basically a 360 GFWHP set-up, which is about 50 NFWHP jump.
Vortecs would bring a noticeable jump. I'd go with upgraded parts from sdparts.com, personally. http://www.sdparts.com/product/SD806...keHeaders.aspx
To get the most out of it, full exhaust (headers, high flow cat, cat-back) and cam (such as LT4 Hot Cam) would be required. That's basically a 360 GFWHP set-up, which is about 50 NFWHP jump.
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