Ideally, on a Franklin, the cam should be set so that the intake midpoint is set at the same # of degrees after top dead center as the camshaft lobe separation. Huh?
Measuring (in crankshaft degrees) the distance between the intake midpoint and the exhaust midpoint and dividing by 2, gives us the cam lobe separation in degrees. For best overall performance, the cam should be set so that the intake midpoint is the same # of degrees after TDC as the lobe separation. On later cars, this can be played with just a bit due to the variations int eh cam gear mount. Not so on the early cars.
