Hi, I have had a problem with my truck for some time. My lack of power only happens when the outside air temp is over 90, I am using the air conditioner and have been driving for at least a half an hour. It is very sluggish from a stop until I finally get to about 6lbs of boost. I thought it was the fan engaging using too much power but since installing a new pyro pre turbo I see low exhust temp (300-400) degrees when it is acting up. The engine runs good on cool days, I have the star wheel out about 6 turns from stock, the smoke screw is backed out 2 turns and the full fuel is in about 2 turns. I have what is considered 40hp injectors. Once boost comes up I can hit 25psi boost which is where it normally runs. Thanks for any advice