Originally Posted by hammertime
Originally Posted by maxpower671
Originally Posted by hammertime
Originally Posted by maxpower671
Originally Posted by ccperf721p
I run a 7AL2 with a pro power coil on a 15:1 alky injected 434. On a couple of occasions it has fired a 15% tip of the can without issues.
what sparkplugs? how much gap?
AR3910s gapped at 30, Extended tip plugs, A lot of engines miss without them.
why is that they miss without the extended tip plugs?
Because the non ext-tip doesnt burn as well with alky causing a slight miss.
wonder if the 3910's plugs would fit my engine? steel 990's with big dome piston to get some compression. present plugs are autolite 145's, have gapped them from .018" to .035" without success. big difference in reach between the two plugs.. :?: