Need to know what vacuum reading you have. It needs to be sufficient to pull the power valve rod off the power valve at idle.
For your application. You need to open the idle bypass restrictors to at least .052”. They are now likely .043” or.046”.
You may also have to drill holes in the throttle plates—about 1/8” on the center carb only. This is to prevent nozzle drip when the engine requires the throttle plates are open beyond the idle slots in the throttle body.
Call or text me at 920-450-1040 to discuss if needed.
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'64 GTO Tripower Hardtop (Wife's Car)
'64 GTO Tripower Post Coupe (My Car)
'99 Bonneville SE Sedan
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