carbed out

thanks for the replies , compression testing cylinders shows 140-150 , pistons are not flat tops have a dome/wedge shape from what i can see in cylinders, have auto trans with shift kit , unknown stall, 355 gears 2-1/2 duals with headers and turbo mufflers before rear wheels, i put fuel regulator on and set for 5.5 psi i heard holley power valves had some gasket issues , maybe pushing gas past power valve ? i backed out idle screw all the way car still idled slow 500 rpm and mix srews had no effect , with the edelbrock i could power brake and light the tires but it was always inconsistent, thats why holley switch