drag-200stang":1kdc5pqa said:
I hate math , double check your Center line method with the .050'' method.
Yes, and be sure to check the exhaust valve timing also
The .050" specs that are used to degree the cam using the .050" method is the following:
Intake opens at 3 degrees After TDC and closes 29 degrees after BDC.
Exhaust opens 37 degrees before BDC and closes 11 degrees before TDC.
Zero the dial indicator with the intake lifter all the way down.
Turn the crank clockwise at least 2 turns and re-zero the indicator.
Turn the crank clockwise until the lifter begins to rise and stop when the dial indicator reads .050". The degree wheel should be at 3 degrees ATDC.
Continue turning the crank clockwise. The lifter will go over the nose of the cam lobe and begin to return to the bottom.
When it gets .050" from the bottom the degree wheel should read 29 degrees ABDC.
Repeat this procedure for the exhaust lobe.
The lifter should be up .050" at 37 degrees BBDC and return .050" from the bottom at 11 degrees BTDC