CLASS RACER FORUM - View Single Post

Glenn Briglio · 12-26-2014, 12:16 AM

Edelbrock performer rpm and performer rpm air gap are good manifolds to use over cast iron oem manifolds. Putting a 4 hole spacer on top of them will also help if you have the room. If you have to use the oem manifold it can be modified to work better than stock.

12-26-2014, 12:16 AM	#7
Glenn Briglio VIP Member Join Date: Nov 2002 Location: Massapequa Park,NY Posts: 1,286 Likes: 1,906 Liked 974 Times in 310 Posts	Re: Bbc cast iron intake questions Edelbrock performer rpm and performer rpm air gap are good manifolds to use over cast iron oem manifolds. Putting a 4 hole spacer on top of them will also help if you have the room. If you have to use the oem manifold it can be modified to work better than stock. __________________ 1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop.