Shady dell did not build our 416 or do the studs. I wouldn't let that guy tighten the chain on my Bicycle. He was the biggest rip off shop we ever went to. He is the reason my son started building our own engines. I originally went there because he was the only one with Batten head parts. and talked us into building the 428. He stuck a wire brush up our *** with no lube. stole every part we took to him.
Dave at HTA built our 416 and hired my son . Dave taught my son a lot. Dave, Ray Barton and others . and now he is doing work for them.