Definitely need to know if is a 2-speed or variable. The 67 seems to be a one-year only if it is variable with the large motor. I looked up the part numbers for another member and the 67 was unique.

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!