71 Dart get 408/ Trick Flow Heads....

I built a 360 around the same time frame with the howards edm lifters and "so far" it seems to be fine. I will be interested to ask him what they find at valve adjustment time.

have had a 260/264 Howards flat tappet in use for 4 seasons with edm lifters, its now in my new 418. Zero issues, lash stays constant