Originally Posted by
Rocket42
Kidrrt yes use the extra shim, the best plug is a Go #5 or #6, if you can't find those plugs locally then you can use any O.S. compatible plug in the engine like the O.S. #8
how about in nova? i've just around my LHS, the only available plug is an O.S. r5 and a3, and nova standard plug 5, 6, 7,, which of the following do you think is compatible? tnx