340 built with mild cam (because of power brakes). The TQ was rebuilt by National Carb, Fla. Thick gasket is used, vac at idle is 11 in. and increases to 15-18 when primary is closed slightly and runs smooth.
And what is the rpm doing during this time?
And what is your idle-timing?
And what are the mixture screws set to?
And do the mixture screws stall the engine when screwed all the way in?
And have you checked the float level?
And where is the vacuum advance hooked up to?
Sometimes too much air is really, not enough fuel.......
