Originally posted by tl2111
plug choice is critical.
First time tested Odonnel plug last weeked.
So far only 7 tanks and felt much more confident using it.
97T , 30%, 0.5mm total head shim, 5.4 carb, 6mm pipe
std Nova crankshaft / crankcase
LSN 1 1/2
HSN 4 3/4
temp at plug 113c
air temp around 30c
I will try 77 and 99 next week.