the engine turns over, fuel pressure gauge reads 40-45psi, switched power wire on the dfi reads 12v, nothing has changed or been touched since last time it was driven i dont think... but it wont catch or try to catch. Turns over fine though. I havent started it for a few months really, cause i have been busy, but i did get it running last week. It was loading up on fuel and not starting... so i cut the cranking fuel for the temperature range down from like 9 to 4, cleaned the plugs, blew out the cylinders, and it fired right up, drove for 1/2 hr, parked it, and now this week it wont start,...should i check the coil pack and plug wire resistance values? any ideas?

edit: hmmm, the msd box isnt lighting up when cranking... the plugs wires arent throwing sparks.... the wiring for the MSD hasnt changed, what should i check? It is grounded good, and the 12v wire that goes directly to the battery gets 12.02v...