gdh
Active member
I measured mine and it is .025. There are so many conflicting posts that I have found that state it should be btn .004 and .012 and also that GM original spec variation was btn .012 and.09. I have a Petronix II in it and has been running great for the past 12 yrs.
Given that I am replacing the gear with a melonized one now is a good time to add a shim or 2 if needed. Won't be running 1/4's anymore as I'm ready to swap in the new ZZ383 so won't be seeing high rpm's. Plan on using the vette as a cruiser.
Now I have to find a suitable coil mounting bracket as the new GM intake makes no provisions for one.
Given that I am replacing the gear with a melonized one now is a good time to add a shim or 2 if needed. Won't be running 1/4's anymore as I'm ready to swap in the new ZZ383 so won't be seeing high rpm's. Plan on using the vette as a cruiser.
Now I have to find a suitable coil mounting bracket as the new GM intake makes no provisions for one.