Ok, my motor, i just put a cam in it, and intake. tried to start it up, nothing. put a different carb on, started, but that carb went bad. another carb, started right up, ran fine, but had to cut it off. went to start it up again and it started and revved to about 4000, then cut off. this time i had tied the chock open so i could break it in, and i didn't have the choke wired up. after that it wouldn't start, just pop pop then a 4ft fireball out the carb, EVERYTIME. so i'm pissed! all this cranking without it firing is going to RUIN MY CAM! note, the carb is an 86 qjet with electronic metering rods, and carb is not plugged in. any thoughts? ideas? suggestions? prayers? words that'll make me think the cam ain't gonna go flat. HELP PLEASE!!!!!