When I did mine, I also did the cam. I pulled the heads and got a valve job and decked them .010, also new springs locks and retainers, she had 150,000 on her. I gasket matched the heads and intake myself, also cleaned up the runners and throttle body hole on the upper. Dunno how many miles you have but its something to think about, till the money for heads come along. Those mods netted me a half a second in the 1/8 and a cooked AOD

. John
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89 Notch: 10 pt. cage, d&d rear coil overs, moser 33 plines and spool, gutted
91 Hatch: cobra int. fms. c-springs, novi-1000 w/f-150 crank pulley (9lbs.)
06 F-350 6.0 crew cab lariat srw 4x4: turbo back exhaust, sct xcal.