Re: Econo Modified
I think I can help with an index from just shooting from the hip. I'd say at 9 lbs. per cube, you will see some 9.40's to 9.50's. So say, 10 flat. I may be wrong, but at 10.5 lbs. we went some 9.90's. But that was with a modern car, and a star vac pump.
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don,t have one
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