Originally Posted By: limequat
 Originally Posted By: efi-diy
Limequat does HP or EFIlive let you mess with the VVT tuning?


Depends on the year.

08-09 hardcore 3d maps


Any chance you have the stock 08-09 VVT maps ? Would be a good starting point.


51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them