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Old February 25th, 2014, 11:02 PM   #29
dew jeep
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Join Date: 06-21-10
Location: port huron, mi
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I am running a stroked 4.0.. 4.2 crank and rods .030 over pistons I decked the block and milled the head .010 each, 440 lift custom ground cam and a 99 intake with venom 26 lb. injectors and a 62 mm throttle body with a 1.5 inch spacer.. I have tons of power but I have to run premium in the summer and can run midgrade in the winter.. as far as mileage when I first installed it I was getting 21 mpg on the highway with my ax15 ,3.55 gears and 33s.. and that was with stock throttle body since then I am running 4.10s and 33s now I am only getting 12.5 on the highway with the 62 mm .. its all in a 1991 xj 2door.. if you do build it make sure to watch your numbers I am at 10.5:1 compression ratio and I wish it was lower... but that was my own miscalculation but I would give up the power for anything.. I do most of my climbing barley touching the throttle and on the street I have guys thinking I am running a v8 because of how well it gets up and moves.. I wish you luck on a build
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