Engine shakes BADLY!!

I did have problems getting the carb dialed in before. It's gotten much better. Used to run very rich. Now it's pretty good. I have a 2.5. Power valve. Idle mixture screws are 1 turn out. I checked a plug today and it wasn't wet fouled like before but now dry fouled ( black carbon suit). I have a feeling my plugs might be a little to cold temp.

On another note been having trouble starting the engine once warm. I really have to pump the gas and hold the pedal as the engine spins, and spins till she flashes.

This set up has way better ignition then my last duster and my old duster would flash instantly. Not sure if I'm just having carburetor problems.