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Hi Ted, I went yesterday to the dyno and I think I was doing good, but after seen this build and numbers I'm not sure now... I did 662whp my mods are LTH,rotofab, lt4 low and high side plus lt4 injectors with .80mm pulley and 100oct. Are this good numbers? Also my tuner told me that I need now to program my transmission TCM to gain pass those number! Any recommendations and what cam you recommend to pass the 710-720whp
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