I have used Dean Nickerson a few times and I know alot of people use him too.
He is in PA.
Sorry, I don't know anything about the other guy you mentioned
I agree with DJD, Dean Nickerson is the man! He set up my carbed blown 750 Hawks and it idles like a stock 454 Mag! No fouled plugs and no black transom. He is in Bristol, PA call information, Nickerson Performance