Quick fuel Q750 tune ?

Thanks for the input people, I need to get out there and try some of these out
Running the same carb on my 68 340 cuda, had to jet down to 66 with a 4.5 powervalve in the primary & 72"s in the back with no pv. Idle screws are about 1 1/4 turns on all 4 corners. Running mopar purple cam, 260/260 @ .50. Hope this helps.