crank reference angle with classic fast

[PhatGN]

I have had this combo for a while now and we just swapped everything over to another car.
Went to check timing with adjustable timing light and it's not reading correct.
Verified TDC WITH A piston stop and the balancer is correct. In order for the timing light and balancer to read correct is to change the crank reference angle in the fast to 22°, once I do that everything is right. But when I go to log a run, the fast commands 18° but the log reads 23°. Also when I use a cam sensor tool correctly the car doesn't start, I have to rotate the cam sensor clockwise past the light to get it to crank. All that said if you give it what it wants it fires, idles and runs fine I just want it to be right so I know what timing I'm actually getting.

ANY IDEAS?

 

[STP]

Taylor, move this to Performance ECM. Some of the FAST hot shots may have some ideas...I think the crank reluctor has slipped.

 

[pacecarta]

if you verified mechanically that 0 is TDC then set the xfi base to 10
lock the timing at 30 and without the dialback see what the timing is (use a tape to mark off 3o on the balancer so you can see the tape mark at 0 on the timing tab )