Not sure really why. . . .i did a compression test about 12k miles ago, it was 128psi on the low cyl and 132psi on the high they say for these eninges 125psi is good so i must have a healhty one than. . .
I have totally rebuilt the carb since then. . . but hell if i'm putting the cheap stuff back in it again. . .
Would building a set of header's for it make enought of a difference to bother ?
Mike