Ryan Johnson at Shadydell ported my Edelbrocks. Even though my car has a small cam, pump gas compression, small carb, street car, through the exhaust, it still runs 10.5's @ 125mph.....I'd say they work pretty well. I'm very happy with the work he did on my heads.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
