Seems to be a common occurance in the ol' Stovebolt world at the moment !Have a buzz through some of the forums and you will no doubt find a few of these questions at the moment.
A quick guess from this side of the world would be to check your float level and the needle and seat in the carbie.
A classic problem is a sticking needle and seat which will let the engine start, run , idle etc. and then fuel up the engine, foul the plugs and cause it to stall after a short time.
Your bowl might appear to have "plenty of fuel" in it, but is it set at the correct height?
A float level too low will have the same result.
I'm leaning towards this as you say all the ignition system will start and run the engine.........so obviously no problem there!
Give all that a check and see what you find...Good Luck.......Doc Bob.

"It's not a wreck......It's a natural resource!"
Quote-Doc Bob circa 2006

DOCS CLASSIC GARAGE
Specializing in Hot Rods,
Customs & Street Machines.
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