Twin cam isx 870

[Rawze]

what is the engine ser#?.

also, only 33/30 psi boost ... it is in a severe derate.

sounds to me like incompetence by whoever is working on it more than anything.


make/model truck, maybe some history, etc etc.

and if someone changed the program for more HP.. for all anyone knows it could be a program for different injectors and different head, etc.

what is the program in it according to Insite?.

and are those certified OEM heads from OEM stealers$it?. - if not then your pi$$ing in the wind with garbage any ways.