I had one of these CHC's with the 292 crank in my LSR roadster a few years back. An SCTA member Vic Enyart and I were partners may still have the engine. It was a 303 inch and ran in the "D" class. He figured out a lot of stuff with the cam and rockers the worked better than the stock stuff Eddie Meyer had used when it was in a race boat. I can get you a contact number in So Cal if you want..Good Luck..JD

216.158 MPH 12-Port 302 GMC on 70% 171.0 MPH 302 stock head on gasoline 7 years later