I have a 1992 Chevy z71. I bored the motor 30 over and put a cam that was one size over. I would like to know if the cam changed where I should line up the timing mark instead of at 3° in advance
Is the 3 degree BTDC number what is on the emissions sticker? You can try bumping it up to 6 degrees BTDC but listen for ping depending on what octane gas you use.
