Read my post on these, the cranes are pretty good, i gained some good power, far as i know, my car is around 180k, and i didnt change springs, i left everything as it was, just bolted in the pedestal 1.7's, if you need more directions let me know, i didnt use shims, and i have no problems, but you have to modify your stock valve covers a little, this was fairly easy, once you've had the upper intake off before, you know exactly what to do, i had to learn about the vaccuum lines and such, but no problem now.
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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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