i found a 350 that may have TPI, and currently i have a 305 with a comp. controlled carb. if i swap motors, what computer crap will i have to deal with? do i need a new ROM? and is the wiring diffrent?

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1985 WS6 Trans AM
T-tops
bone stock sloth of an engine LG4
T-5 tranny. thank god, i couldnt stand an LG4 auto.
Plans for an LT-1 or LT-4,
dual flowmaster exaust,
& a pounding stereo.
mods right now include a radar detector.

 

i'd find a 350 tpi doner car and take the engine, ecm, and all the harnesses as well as anything else you see that you may need

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ICON Motorsports

1st & 3rd

 

There's a tech article on this, as well as several posts.

Basically, you need to change anything attached to or associated with the engine operation (except transmission, power steering pump, etc. Although some brackets will change). So, yes, all engine & ECM harnesses, the ECM itself is different (not just the PROM), all sensors. I think you get the picture.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, WP 305 heads ported & polished, Hooker headers & y-pipe, hi-flow cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.