Reply to "Seeking Advice Concerning How To Correct An Engine Misfire"

rockyMember

Hi Sig -

Based on your description above, I think you have mechanical secondaries. You said you had a “double pumper“.

Anyway I had a problem with my Holley vacuum secondary carburetor, where the diaphragm the pools in the secondaries was stiff and not opening.

That might be something else you want to check, that your secondaries are opening smoothly as you ramp in the power. It might explain why you are having to go so much richer than the primaries.

We we made a little flag, and affixed it to the secondary linkage. This let us see that the secondaries we’re sticking.

Easy to do.

Rocky

2/18/196:16 PM

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