Hey, I been having issues with my truck. Every time I start it up it smokes white until it gets warm and going down the road. Truck has been bullet proofed, studs, new heads, egr deleted, straight piped, and SCT tuner. Tuned on 65hp tow tune. Any suggested places as to where to start. Also can't get my A/C working. Has been vacuumed tested and a leak down tested all pass. But can't get it to kick on and push cold air.