Re: 302 2 barrel intake manifold? 1969
There are dozens of things to consider when buying an intake manifold. If you're running a stock low compression engine with mostly stock drivetrain and are only looking at an intake upgrade I'd say a Edlebrock Performer, not the Performer RPM.
You'll need a dual plane manifold that makes power in the idle to 5000 RPM range. Bigger is not better when it comes to intakes. A manifold designed for high RPM on a stock, or nearly stock engine will perform worse, not better.
If you're swapping cams, adding headers, higher compression, bigger carb, etc. the RPM would be the better choice. Look at the intakes advertised RPM range and use that as your guide. Keep in mind that an aluminum intake will shave off several pounds too which is always a good thing, not to mention easier on the back to install.
You'll also need a good four barrel carb. If you're stock, or mostly stock I'd say go with a Holley 600 CFM with vacuum secondaries. That carb will grow with you if additional upgrades are in the future and won't be too big for what you have now.
I hope this helps.
Last edited by 65FalconLover; 05-17-2011 at 06:20 PM.