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Bill OH · 09-25-2021, 10:29 AM

On the advice of another person, I installed 43 mains and 65 PVs in a pair of 97s. Hesitated off the line unless PVs were open - ie WOT. I went to 45 mains with 65 PVs and the engine would bog when the PVs were opened. I kept the 45 mains and installed 71PVs, which is half of the 65 PV. Engine runs fine and is very responsive with the idle mixture screws turned out one turn. I am using a stock mechanical pump, no regulator, an no chokes. I am in Northern Ohio at an elevation of about 600ft. Hope this helps.

09-25-2021, 10:29 AM	#37
Bill OH Senior Member Join Date: May 2010 Posts: 426	Re: Stromberg 97 adjust On the advice of another person, I installed 43 mains and 65 PVs in a pair of 97s. Hesitated off the line unless PVs were open - ie WOT. I went to 45 mains with 65 PVs and the engine would bog when the PVs were opened. I kept the 45 mains and installed 71PVs, which is half of the 65 PV. Engine runs fine and is very responsive with the idle mixture screws turned out one turn. I am using a stock mechanical pump, no regulator, an no chokes. I am in Northern Ohio at an elevation of about 600ft. Hope this helps.