Mack Built

More test with EFI specialties.. cars up to 491whp and 497tq with the coupler installed.. base line tonight vs just a tb swap.. both hot runs back to back.. no tune change at all.. the thing works when needed.. very surprised at how much it helped my car.. guess she needed some more air..

92MM MMX throttle body final results Decided to give it a test with a Coupler.. base line is stock TB.. after is the 92mm modern muscle extreme tb kit.. no tune change... both runs hot and back ...

Some cam testing done with

6.4 vs 270 cam vs stock 5.7 cam in a 5.7 dyno results Listen to the video.. also follow me on IG