i have a 95 talon 4g63 turbo, i had the head rebuilt at local machine shop. we reassembled everything and now we cant get all the timing marks lined up. if i set #1 at tdc i can get the balance shaft and oil pomp lined up fine but when i try to line up the cams per fsm i get interference on #4 valves to piston. could have the machine shop installed the cams flip floped or am i doing something wrong?