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Here Thackery tunes the 500hp LT1 engine in the '93 F-body on the Dynotech Dynojet. Harrington "found" 22 hp with careful tuning, then another 20 with stronger valvesprings.
Wanted: LT1 With Attitude

 Here Thackery tunes the 500hp LT1 engine in the '93 F-body on the Dynotech Dynojet. Harrington "found" 22 hp with careful tuning, then another 20 with stronger valvesprings.  View Related Article

 

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