Well, to make a long story short i actually melted one of my NGK plugs on monday using nitrous... The problem seems to be NGK from how i see it. The plug must have pulled the "glow plug" manuver that you can get using nitrous. The autometer A/F gauge always gave me a 3 to 4 bar into "rich" reading while using nitrous with the NGK plugs, after last monday's experience of driving home on three cylinders and thinking i blew a piston ring, i got a compression check and im fine. So i put in denso copper plugs with the same gap as the NGK plugs and for some reason the A/F gauge is coming out with a richer reading than before on nitrous, so im going to the track tomorrow to see if there is a power loss that is acociated with running a "richer" mix (but safer from anyway you look at it). If the denso plugs pull the melting manuver i dont know what im going to do. The funny thing is i always swore by NGK's... and ive been running the same jets for 7 bottles and never had a problem before and had just changed out the plugs a few thousand miles before. Maybe it was just a one time occurance....