Thread: 455 HO FORUM
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Old 04-23-2008, 08:37 PM
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OVERULD OVERULD is offline
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O.K. njsteve, you're right. I rechecked it, this time with WOT, cold engine, # 1 plug and got 155 PSI. So, Mike, does that help?

BJ

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1971 GTO 455 HO 4-speed - Cameo White, White Vinyl Top, Jade Green Interior, Ram Air Hood, AC, Honeycombs and 8-track 1974 Formula 455 I Owned in 1975-1976. Now Own Its Twin From Same Dealership