305 to 355 swap
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Joined: Sep 2005
Posts: 140
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From: Fairchild AFB, Wa/Oviedo FL
Car: 1995 Firebird Formula
Engine: LT1
Transmission: Th350/4k stall
Axle/Gears: 10 bolt with 3.42s
305 to 355 swap
hey guys in about to go from a 305 to a 355 and i wanna keep the TPI. to do this i know ive gotta change the 19ibs intectors to the 22ibs, but do i have to get the ecm for the 350 or can i run the stocker thats in the car now? im doin this for a friend and hes dead set on a carb but im tryn to convince him to keep the FI.
Joined: Mar 2000
Posts: 43,187
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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
You don't need the whole ECM, but you do need to either reprogram the chip, or get one for a 350.
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