Hi, rebuilt my original carb (correct for '57 Golden Hawk 289 supercharged) two years ago. Still plugging away. Noticed in Svc Bulletin (looking for carb box vent-flap settings) that a 1/4" hole was "now drilled" (Jan 1957) in the butterfly valve (see photo) to prevent "over-rich" condition when engine is cold. No way to get the butterfly off, screws are peened on back even if air-horn weren't in the way. Don't dare drill it and even with paper towels stuff down inside the carb, getting any shrapnel falling in there. Is that hole very important when it will never be driven in winter? (or maybe MORE so?). Call me lazy (frustrated at EVERY piece of this car fighting me? :-) but HATE to pull it all apart to drill one little hole.
My air-horn IS 1 1/4" to prevent "lean condition after starting", so THAT change was made (my car is an early '57, Oct 18th 1956, engine 6100867). But a bit early for that hole in the choke butterfly.....
Thanks
My air-horn IS 1 1/4" to prevent "lean condition after starting", so THAT change was made (my car is an early '57, Oct 18th 1956, engine 6100867). But a bit early for that hole in the choke butterfly.....
Thanks
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