So are these heads tons better than Edelbrock Performer RPM's? Enough that it's worth taking the Edelbrocks off a running engine and switching to the TF heads?
fWIW..... if i was to guess, assuming both heads were merely just checked to make sure they were ready to run, and just bolted on a bracket stroker race type car, i would guess the TF heads are probably 4 tenths better.
Could close most of that gap if the eddies were fully ported.
Not seen any TF heads yet that anybody has went after to make them better than how they come.
