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108 Posts
Discussion Starter · #1 ·
:confused: I just got my car back together and the rebuilt carb seems to be making a whistling sound while setting the curb idle for final adjustment. Itv only happens within a certain range for adjustment. I can not get to idle where I want without this annoying sound. I can adjust the whistling sound by moving the idle screw (blades) back and forth.

I think the 4 holes drilled in my throttle blades for the large cam maybe causing a whistling sound when they hit a certain angle?

I have another base plate in the garage with no holes and was thinking of switching out? Just wondering if anyone has had the same problem?
 

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Premium Member
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108 Posts
Discussion Starter · #4 ·
Thanks dawg! Sounds to simple, but makes sense since I reused the older gasket. I will replace and recheck! I will keep you posted!
 

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991 Posts
Too much initial timing! Mine did that when it was way out like +20* at idle.
 
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