I put in a new gm LM1 290hp crate engine with edlebrock preformer intake and 600cfm carb that is calibrated for economy. I'm runing it through a 350 turbo tranny and a 3:08 rear. Dual exhaust with 40 series flowmasters. Its in my 61 panel daily driver. What should I expect for reasonable mpg? Right now I'm in the single digits and its costing me a fortune to run. I was hoping to get 12-13 mpg is that out of the question? Thanks
Mac
