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Bill OH · 11-01-2021, 10:26 AM

I had a pair of Hollys on a 239 back in the day and I experienced a flat spot in the transition from idle to mains. You might try opening up the idle mixture to see if that helps. I had vacuum leaks between the bowl and the base and with other problems I switched to 97s, which I also have on a 221 running stock mains and #71 pvs. Runs very well!!!

11-01-2021, 10:26 AM	#3
Bill OH Senior Member Join Date: May 2010 Posts: 426	Re: Lean MisFire I had a pair of Hollys on a 239 back in the day and I experienced a flat spot in the transition from idle to mains. You might try opening up the idle mixture to see if that helps. I had vacuum leaks between the bowl and the base and with other problems I switched to 97s, which I also have on a 221 running stock mains and #71 pvs. Runs very well!!!