Well I finally got my new built motor put in and the car starts then dies after a few seconds. I’ve verified timing, but I noticed that when I took my valve cover off the exhaust cam was out of time. After 2 full rotations it was back in time. I assumed it was a stuck vanos solenoid so I cleaned both well and put them back in connected them and cranked the car a bunch. Both cams stayed in time so I put the car together but still had the same issue. No codes either or limp mode. Any ideas would be appreciated