I recently bought a 1968 Firebird convertible. It came with a supposedly all rebuilt 400 motor that was done almost 20 years ago just never got put in the car. Since its been so long I've decided to freshen it up. I'm not too familiar with pontiac, I've usually done chevys.
But I noticed that my timing marks do not match up. The crank will be a 12 o'clock and the cam will be about a tooth off. At what looks like about 5 o'clock.
The guy I bought the car from says they put a high performance cam in and that was all he knew about it. I took the cam out and since it has no numbers I can't identify it. So I'm at a lost as to why this motor would be set about 4° advanced unless there was a purpose behind it. Has anyone run into this problem before?