I pulled the engine out of my Camaro this winter to double check some stuff. We got it back in the car and now it won't start. Thing that's really got me scratching my head is that when I'm cranking it over it seems to want to fire, though it never really goes, but as soon as you let go of the key, it revs a bit and pops smoke and raw fuel out of the carb. Wierdest thing is that when it revs and pops, it's spinning backwards! I mean it's rotating in the correct clockwise direction while cranking, but as soon as you let off the starter, it revs backwards on you while spraying smoke and raw fuel out the carb! WHAT THE HELL!! Has anyone ever heard of this before? I got to think it's an ignition problem right? Cap and rotor are good and the wires ohm out good. I'm wondering if my ignition box is acting up. It's a Mallory 685 unit. Base timing is loosely set somewhere around 24ish degrees. We've confirmed that with two separate timing lights. I triple checked that I'm not 180 out on the dist. I've put the timing light on all the plug wires. Some cylinders give good steady flashes most of the time, others give quick double flashes, while one doesn't show spark at all most of the time. I'm getting really good spark out of the coil too. Process of elimination brings me down to the ignition box no?