Carb size?

[84_GT350]

I've decided that my current carb is beyond repair. It's dumping huge amounts of gas into the engine, fouling plugs, idleing high, and just being a pain in the @ss. Had the floats replaced and it worked ok for a week or two. Now I've decided to just buy a new carb. The current one is the one in my sig (Carter 625cfm elec. choke). I can go one of 3 ways. I can get another Carter 625 elec. choke, I can get a standard Holley 600cfm elec. choke, or a Holley 600 double pumper. Any comments? I like the adjustability of the Carter but I wonder if I'm over-carbed. The cam in my sig measures .493"int. .500"exh. lift dur. @ .050" is 218*int. 224*exh. See the signature for my other mods.

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1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s