Super Coupe Timing

[Stang_232]

My friend has a 1990 Ford Thunderbird S/C but the timing is off we tink does anybody know what the timing should be the car is at 0 degrees TDC but i was under the impression u have to retard the timing to compensate for the supercharger.

 

[Jenns01TA]

From what I have read stock is 10 degrees BTDC.