You might want to stick with Performer RPM, or go with the new Weiand Stealth manifolds. The 300-36 is older runner design, good though as it is. The Weiand was produced to surpass the Performer RPM. You just can't go wrong with an RPM and a spacer.Yes we look to have a very similar setup. I think I will go to a Holley 300-36 or an Edelbrock Performer RPM now for an intake.