1fast5.0

ok i have a quick question i just got done installing a set of 42lb injectors along with a 80mm maf iam running edelbrock heads ,t/f stage 2 cam,70mm t/b,edelbrock upper &lower,and a supercharger ,what should my fuel pressure be i think its way to high now its at 55 and it seems to run like crap i set it down to 45 and sems to be ok .just wondering what it should be around.thanks. and also what kind of spark plugs should i run and what gap?

Joel5.0

45 psi w/out vacuum line.....40 psi vacuum connected....then tuning should follow...IMHO.