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UPDATE:
Outside temp was near 70 today.
My car has 70 IAB. I ordered 66, 62 and 58s to try. The 84 main jets are still in place. Started with 80s.
Changed to 66 IABs and the car would barely run down the driveway and the the surging at steady cruise was much worse. The surge extended up to about 2400 rpm.
This was a successful test. I was able to make the condition worse. So, I must have gone the wrong way on the IABs.
I plan to order 76 and 80 IABs and see how that goes. As much worse as the car felt with 66s, I will guess going to something like 74s might be enough, but I want to move enough each time see the change.
John
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