I undone the ground from my block the oneon the front next to my header and it starts perfect everytime...only ground it has is the one that sits under neith the battery wtf if up with that kinda bs...

 

O i just took it out for a test drive..i have no hesitation at all..back to full power...even with a/c on i can still smoke my tires that are brand new bf goodrich 225/60/16...weird never in my life have a seen something like this before...

 

The ground has 2 main connections there is one by the battery tray. There are other connections to the frame from the main wiring harness like at the headlights and such.

 

One on the battery tray is hooked up the one going to the block aint..thats the one i unbolted and now shes back to her self..its weird man i tell u