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#10
06-04-2026, 08:58 PM
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Chiphead has good info.
Took 2 hrs on a supposed expert Holley guy set up a 850 for a buddy's 455 with 230/240 something cam with torque 2 intake. Everything wrong. Fuel level in bowls 3/4" high. Pump levers set over tight fuel leak at idle. Primaries open above idle slots. Needed 5 jets lower both bowls. Same guy told him 28* max timing.
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