NO EGR manifold???
 

Ive decided that im gonna get a performer intake and a 600cfm holley carb with no emissions equiptment for my 85 5.0 GT engine. Also i am not going to run emissions equiptment such as "egr" in order to get the proper intake that is NOT for EGR do i then have to use a performer 289 since it looks like all performer 302s are for use with egr. is the 289 as good as the 302 manifold? and do i need to use a carb spacer or can it be bolted directly to the manifold?. im sure these are dumb questions but this is my first time rebuilding and modifying an engine so any help would be great, thanks.

The Performer 302 would also require the non-EGR spacer plate (#8714). The Performer 289 would not. The Perf. 302 has a water crossover at it's rear with two extra tapped holes. I don't believe the Perf. 289 has a rear water crossover, and if it does, I know it doesn't have any tapped holes in it. I would just get an RPM manifold. The combined height of the perf. 302 and the spacer plate are almost as high as the RPM, but with one more gasket to leak. The 289 intake would work too. My recommedations would be:
1) Performer RPM
2) Performer 289
3) Performer 302 & spacer

Take care,
-Chris

you are right about the height, the performer 302 with the spacer will actually be taller than the performer RPM. does anyone know forsure if the performer 289 has a rear water crossover, or if the performer rpm 302 has the rear water crossover. and why is it important to have this, should i make sure i get a minifold with this crossover?. Also i was planning on staying away from the performer RPM because i want to make more torque and horsepower lower in the rpm range , and becuase i dont have too radical of a combination (mildly ported E7TE's, 600cfm holley, 1 1/2" full length headers, dual 2 1/2" exhaust with no cats, and no emission equiptment on the engine)