Hands down, the “best” of the std port/std port height ootb heads are the Trick Flows.

Everything else is a pretty big step behind that.

Between the Ede, Sidewinder, ProMaxx, Speedmaster, Stealth heads...... ootb..... the Stealths flow the least.
Sure, they can easily be tweaked for improvements....... but so can the others.

The Ede heads come with better hardware than the copycats.

My preference for all of those heads is the Ede head.
I have more faith in the integrity of the USA made casting vs the import casting, and I trust the hardware.

If you can swing the $$$$...... get the TF’s.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads