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Modified tri-power center carb stumble when accelerating
I am having an annoying issue with stumbling/hesitation on the center carb when accelerating. It only happens when driving, not when free-reving.
Hoping for an easy fix without drilling out the carb if possible. The car will start on the key, the first turn, and idles great. Is there a way to increase or decrease the pump shot without drilling out the tubes? I am surprised this 455 carb wouldn't already have enough shot for this smaller motor. Anything else come to mind? Center Carb: Original 455 2bbl NOS rebuilt, stock jetting - untouched, jets 61? End Carbs: Stock '65, bores opened up on a machine, jets 74 Here is the rest of my combo 433CI 11:1 compression Ross flattop pistons .005 in hole. Ported #77 '65 389 heads, Ported intake 230-236 HR Extreme energy on 110 LS, 1.6 rockers 4 speed, 3.73 gears. Distributor has 8 initial and 34 total timing, in by 3000. Vaccum advance limited to 6 degrees. Full exhaust. |
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