low power?
might want to check valve clearances too
Exhaust:.025in (0.64mm)
Intake:.015in (0.38mm)

i could not find a cylinder compression figure
the book just has a cylinder leak test and says that all compression between cylinders should not vary more than 20%. I'm sure its in some obscure corner of a section in there...i just didn't see it.

There also was a large section on how to adjust the fuel system which could also cause low power situations.