i am getting ready to get a xcal 2 for my lightning. i have been in contact with jj @ wms and all i can say is great service. he also is going to burn me 3 custom tunes. anyone have any before and aft. dyno or track numbers with his tunes.

 

got his tune in my truck
415rwhp - stock pulley
heads and cams and ported eaton
good guy to deal with

 

with the same mods, in hotter conditions JJ matched the numbers johnny made on a dynojet. JJ was using a mustang dyno. So add ~ 15% to what jj got out of my truck. That is in the hotterconditions also...