Valve timing for the 12/1 degres from TDC converted to inch around circumference

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Look for spec's on valve timing and a diagram for the 12/1, and the degres from TDC converted to inch's around circumference
for 20 inch fly wheels. if some one all ready has this inforation readly avaible it would be great!!!!!!!!!!!

[mobile_bob]

10 degree's = 1.75" on the circumference

(1 degree = .175")

once you know the actual degree spec, you can do the math from there.

for instance, 18degree btdc would be

18 * .175 = 3.15" or ~three and an eight inches is close enough.

bob g