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Old 04-26-2011, 07:28 PM
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My 305 went , Vortec heads , perfrmr cam , intake , QJet , headers with DMturbos muffs, electric fan , 3.73 with 28" tire , TH350C lock up on a switch. Great build, powerband for street, needs no stall . Busy , but driveable on the highway, 65 at 2850rpm. Problem, the 85 GM truck weighs about 4800lbs. 15.7 run at 87 mph. 17 MPG at 65 cruise at one speed no hills.
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