Starts fine, runs 1 minute, goes psycho
In English: 68 with Demon carb on a 454. It starts up nice (for a cold blooded monster), starts to level off as the oil gets around, then like somone flipped a switch it starts to miss badly. Feels like a misfire @ 2+ cylinders, and smell tells me lots of unburned fuel is coming out the exhaust.
Background: I normally try to warm it up around 1500-2000 rpm, as it idles at 700 normally and won't stay running when it's cold at that level. I checked all the plugs/wires yesterday...looked good and even. All cleaned up now. Checked the coil wires and mallory rev limiter setup, seems ok. Only change in last week has been rain, but no evidence of water intrusion. Pulled cap and cleaned rotor as well, no problems.
If I take it for a drive (after stalling repeatedly) it seems to be ok above 3000 rpm, but isn't quite its normal self at lower speeds. And it stalls every chance it gets.
My brain naturally gravitates to electrical, though it is probably only because I "don't do carbs" very well. Of course, that means it will be a carb problem.
Ideas? THANK YOU!