Hi, I am new to owning a foxbody mustang. I love the car so dearly however when i bought it, it had a passenger side lifter tick. I replaced the lifters. Put everything back together and tick is gone. I got it running except I had a vacuum leak because the driver side lower plenum gasket moved when I put it back on. Fixed the gaskets and everything yesterday made sure worked very slow to do it correctly. But now the vehicle wont start. It cranks but wont turn over. Im so frustrated because I cant figure it out. Does anyone have any advice at all? Im open to any suggestions. Oh I also have code 85 and 81.