Performer RPM to RPM Air Gap Swap-350 chev
Just wondering if anybody has any advise on what sort of tuning changes can I expect when I swap this Performer RPM intake with a Perf. RPM Air-Gap ? I will be using a 1/2" carb spacer and the carburetor is a Holley 750 DBL pump, no choke or air-horn. I guess I just need to know if I should expect to change jets or Power valve or anything at all ? Thanks for your help.