Originally Posted by BBCMudbogger
The way the answer in post 2 was written, the poster seems to indicate the o-rings aren't optional.
But I pointed out he didīnt have to use if he didīnt want too in post #3.
If his block aint chamfered he has no option.
I just plonked my MSD in today, sans O rings, and the fit was perrrfecto.
The lube packet provided by MSD had pooped over the Atlantic so Im using