Th McSwains presence in the Duramax community is VERY valuable. I can't hardly wait to get my stock sent off to be converted to the race tune.about a certian truck putting down over 750 hp on a stock engine LLY???
Congrats to the McRats for raising the bar yet again, and in a lly yet to boot!!!
Certain LLY's will throw a 1093 and it limits the rpm to 2000 rpm. Here is a link to the instructionsThat's awesome. WHat is the "shimm Mod" that I keep seeing on these folks trucks?
Ryan