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Am looking for Dual Plane intake manifold options for 87-96 style heads. Edelbrock list a 2104 Performer and a 2604 Performer Air Gap. Any other square bore options. Not worried about hood clearance as much as a good intake for mild 350 325hp at flywheel stock heads.
GM also makes one if you looking to keep that great GM feeling it's part # 12366573. I know it's the same manifold as the ZZ430 has and GM rated it @ 430 HP.
325 fwhp w/stock heads does not need much intake at all ... the mildest aftermarket will do fine. Although I don't KNOW exactly what you have, I think you can fit a pre-87 intake with minor mod.
your (late) center boltholes are at different angle than others ... some aftermarket intakes include adapters to compensate ... You should verify Your angles etc.
325 fwhp w/stock heads does not need much intake at all ... the mildest aftermarket will do fine. Although I don't KNOW exactly what you have, I think you can fit a pre-87 intake with minor mod.
your (late) center boltholes are at different angle than others ... some aftermarket intakes include adapters to compensate ... You should verify Your angles etc.
I will have to take another look at Jeggs and Summit. I forget I know the angle is either 8 or 18 degrees and the Edelbrock intakes mentioned are for theses heads, just didn't know if there were others I wasn't seeing. Want a good one for when I go 400hp plus in the Vette. Right now this is in my 92 Camaro, needed a motor and had this one which was intended for the Vette. Put a mild cam and stock heads on hoping to run it with the computer but it just doesn't like it. It stumbles both at idle and during accellerationI know I can get a chip and bigger throttle body to correct this but am planning on rebuilding the original 305 for the Camaro, 25th anniversary vert so I want to keep it all original. Once I put the original motor back in everything will be fine.
GM also makes one if you looking to keep that great GM feeling it's part # 12366573. I know it's the same manifold as the ZZ430 has and GM rated it @ 430 HP.