I had a short-block and E-Heads, and sourced everything else from Butler. They spec'd everything around my existing setup, and were very responsive to my local machinist for the few questions he had.
I can't recommend Butler any higher. I was able to visit their shop when I worked for GM in Tennessee, and they are great people.
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77 Trans Am, 469 w/ported E-Heads via Kauffman, matched HSD intake, Butler Performance forged rotating assembly, Comp custom hyd roller, Q-jet, Art Carr 200 4R, 3.42s, 3 inch exhaust w/Doug's cutouts, D.U.I. Ignition. 7.40 in the 8th, 11.61@116.07 in the quarter...still tuning.
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