Originally Posted by Jeepracer427
here is a picture of my timing tab. can someone enlighten me on the marks?
F-BIRD'88-i checked it when the driver side was down. i spun the wheel and got the same result as when i spun the driveshaft...1.33:1
DoubleVision-i have the spacer plate that covers these holes
BTDC and ATDC are bass akwards. It looks like each line equals 1 degree. You can check this by measuring from zero to 10 lines away. If they're 1 degree apart, the measurement should be from 1.88" to 2.5". The reason for the difference is the tab could be for different diameter dampers. The range I just gave covers dampers from 6" to 8" in diameter.