Nice job, Paul.  I'm not a "flathead" guy, but I always heard that the big problem with them was heating caused by the long exh port that had to pass the full width of the cylinder bank.  There were a few flatheads running that had "reverse" cams with the exh out the intake ports and the intakes through the exh ports, so the heat must have been a real problem.

Last edited by Bullet Bob (5/11/2024 6:12 AM)