Thoughts on new carb !

Ok here is the story, I have owned this 69 Cuda for about 12 years bought as a project car, had engine rebuilt by a local Mopar engine shop a Wayne Hyrowick near Allentown Pa. .30 over 318, Keith Black piston #167, Hastings Piston rings, Comp cam 901-16 springs, Comp. cam Xtreme Energy 20-223-3 cam, SBI Valves 1.88in, 1.5 exh., Baked & blast heads, Bore & hone with deck plate, Balance assy, polished crank, Bronze valve guides, comp. valve job, resurfaced heads, resized 8 rods, done 4/5/2014, since I have had this engine running has never idled smoothly.

I had a friend of mine stop by shortly after getting it running and broken in, to help set up this Holley carburetor per Holley rep. LIST 6989 0388 is from a Ford production car with 600 cfm, I bought this carb at the Mopar show here in Charlise Pa. from a father and son that rebuilds carbs, along with a new Procomp electronics distributor and there Procomp pc91 coil.

This carb is on a Edelbrock 2176 manifold. i have only about 250 miles on this car, as stated never idled smoothly , seems like it would miss at idle, I have doubled check spark plug wires, late last year took car to a local cruise, found that was not charging and car was running very very poorly did not want to idle [ stall at stop signs] thought because of low voltage due to faulty regulator that was the problem.

Over this past winter I replaced the voltage reg. and had to replace the battery. Come this year I was hopeful that was the problem.
Took it for a short drive but still would not idle/stay running in gear, came home was looking at the carb. linkages , I have the Lokar throttle cable kit and there Kickdown cable conversion kit since I have a 904 auto trans, and found that the mount bracket for these cables where missed aligned, there is a set screw that is to keep this bracket from moving so I corrected the alignment when I did the carb throttle plate snapped closed so I was hope full that was the reason why the car would not idle in gear and keep stalling.

So I was able to test drive but still would not idle stay running in gear, so I posted on here and the thought was it was a carb issue which I think the same that is why I am looking into replacing the carb. Holley seems to be a lot of people thoughts also. I want to pick up some brake cleaner to check to make sure I do not have a vacuum leak some where.