try removing your belt from your vortech and check for vacum leaks . with the blower removed lower the fuel pressure to about 50-44 and see how that works. the computer works ok on a 393
it sounds like a vacum leak or a injector going static. ?
what didi you change last ?
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89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .
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