Fuel regulator, alternator regulator?

Describe the problem a bit more... is it slow to start, but then catches and runs, or does it catch-quit-catch-quit? With a modern fuel-injected engine, I'd be checking fuel pressure and flow through the fuel filter (quick replacement) and looking at spark and timing.

Randii (who spent Sunday coaxing an inline 6 jeep to run, and worked through many of the same bugs there)