Id keep the 70 mm tb, since it will match better with the track heat, you might as well spend the tb money on a 73mm maf that is calibrated for the 24's. you should get a fuel pressure regulator with the bigger pump so you can tune it, that should run pretty strong, let us know.
btw, my vortech 73 maf should be here monday, im using stock unit currently, im hoping to maybe have a similar combo as yours, but with the tfs street intk. good luck
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's.
race weight 3,160
12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear
13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear
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