There are a lot of variables on what is required for application. What size motor and how many rpm's. Same formula for what we do with any motor. Find out how many cfm is required for the application. IMPCO makes mixers as large as 425 cfm. You can use as many as you can fit under the hood. :lol: I once saw an I-6 motor with one 225 IMPCO on each hole. 8) They only open as far as the motor lets them. They are regulated by the draw of the cylinder. You can open the butterfly on the bottom all the way, but the diaphragm is what does the regulating. Spark plug burn patterns are fairly similar for rich and lean too. Propane loves compression too, 10:1 is on the mild side.
On the crop side, we got all of the beans done, not too great of yields. Corn is slow right now because of all of the rain lately. 8" in last 12 days. Hope to get going again this week.
run what ya brung and hope you brung enough
89 F150 mud drag truck
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