[:@]My v-spec is back firing and then it dies? i got a little over 1 gal in it. it still has tons of compression. it does it at high speed (full throttle). i set it back to stock settings and re-tuned it. the temps were good (230) and i took the back plate off and the conrod and everything looks great. ive never had a prob one, until now? can anybody help? it sounds like a fire cracker going off and it dies???