So today as i was sitting around the house with nothing to do i decided to take my truck to the local dyno..I did one pull and it was running so lean they wouldn't let me make any more pulls because they were scared i would melt a piston or somthing. It put down 253.89 hp and 259.40 torque. the afr was around 15:1 then when it got to about 5500 rpm the afr was really close to 16:1..wtf. Sounds like its time to ditch the mail order nelson tune and get a live tune?
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