It sounds like dizzy 180 off to me also. Make sure you have a good ground from chassis to block. Put a battery charger on boost while cranking to start. You want 10+ minimum volts while cranking. If using manual choke leave about 3/16" gap from blade to body.Too much gap = Lean and that = pop back through carb. Gas needs to be fresh, not sittting in tank for months.

Brad


Check out the Dorn's 69 Barracuda "Switchblade" in the Nov.2010 MCG
Check out the Dorn's refurbished 36 Ford in the Feb.2011 Street Rodder