Tom,
if that fixed your problem, no reason to open the gap back up.

I had .045 gap when running my Paxton supercharger & 8-10 PSI turning 7000 RPM, never blew out spark.

HEI's usually are good even when turbo or supercharging, but blowing out the spark @ only up to 12 psi, seems like something is amiss.

Never has anyone w/there stock Sy's/Ty's has had to close up there spark plug gap & like I stated,stock boost is 14 psi.


MBHD

12 port SDS EFI