I'm considering a change from TPI to a carb on my 1988 iroc. Does edelbrock or others make a 4-bl manifold to fit these heads? also, can I just keep the fuel pump in the tank and run it through a different regulator to reduce the pressure? And will I notice any drastic performance change with a slightly modified 350 going from TPI to carb? Feel free to mention other problems I might encounter!! thanx.

 

I personally purchased an Edelbrock performer RPM manifold and had someone mill the intake to fit my heads. You can also get a three port pressure regulator (mine is a BG) that will allow you to run your in-tank pump. Just be careful not to try and run too much motor or the factory pump won't be able to keep up.

 

Edelbrock does make an '87-later bolt pattern Performer - see the latest CHP mag.

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 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/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).