At some point you may want to upgrade cam compression head work etc. Buy the rpm performer If i am not mistaken, the orange box is limited to 5000-5500 rpm i think as well. Stay with a 750 cfm carb as well.
Thanks for the reply but in my post I stated that I have no intention of modifying this particular car any further. If I was going to upgrade it in the future then I could see recommendations to go with the RPM. But I'm not planning to.
