I put a turbo kit on my 02 Gt and took it to get tuned. Noticed some white smoke coming from exaust during tune. Took car home and started smoking big time, called tuner and explained, the tuner and I thought it was a blown HG. Shop replaced gaskets and resurfaced heads and used arp head studs. Picked car up and drove home with NO smoke coming out during the Hour trip home. Turned car on the next morning and again the car starts to smoke, and car threw a p0113 code. At this point I did a comp test and all cylinders are above 150. Replaced Intake and added a 90 nitrous jet as a restricter to oil feed to turbo and smoke went away for 10 min. Turbo was rebuilt during build and could not see that being the problem. Has any one had an issue like this before. Any help would be appreciated.