Great article. I have seen all of the Hustlers run. On the first Hustler at Edgewater Park near Cincy in, I think, the spring of '68 I asked Coil why he ran stock unported 426 iron heads. I was expecting ported maybe welded tricked out heads. Coil said "I've still got pulleys if I need em". Years later he took a set of pistons and milled and threaded the tops. Then he made screw on titanium caps for them. The intent was top stop burning pistons which cost $$$. Instead the design trashed a set of aluminum heads burning out a LOT of aluminum. It tells you a little about how Coil thought through how to beat obstacles. Had not seen John Farr's post when I wrote this. Where you working there when the T piston project happened John?