Sounds pretty good...but here's what I'd change. First, the cam. All of Ford's 303 series cams are good, but many cam manufacturers like Comp Cams make cams that will overpower them. Comp Cams in particular makes some great Xtreme Energy grinds. I'm very happy with mine. Second, I'd go with a slightly more hardcore intake if you're shooting for low 13s. Holley's SysteMax intakes are kick @ss even if they are a tad pricey. The Ford GT-40 setups are good too. The Windsor Jrs are good for the money, but a little more power could be had by a little more head (no pun intended
). As for a stall, I'd go with about a 2600rpm lockup converter.
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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