Hey there! I'm new to the high performance race engines and i was wondering how my 12.5 compression small block will run with .040 spark plug gaps. Planning on turning as high as 7000 rpm.
Thanks in advance for your help!!

 

What does the ignition system consist of - stock or aftermarket parts? Are you spraying it?

 

Its a full msd system 6al box and msd racing distributor. No at the moment just running off the motor

 

I always go .035 gap. on just about everything

 

Me too. As to why that is the "magic number"??? But it works for me.

Rich

 

Ok thanks. i think i will try around .032 to .035 and see which works best. Cause my 377 can rev quick and i need to have stabilty (sp) on the top end