Quote:

When you ground the battery to the trunk, it is trying to transfer current to the engine. The body mounts may limit the current from reaching the starter. Try running the ground to the frame under the trunk. Make sure its clean and tight. Then run a ground from the frame to engine in the engine compartment. This "should" take care of your problem.



I agree with None2Slow and it worked for me too:)

BigBlock 74 Swinger