Cam mfgs don't tell you what to set ignition timing at, if that is what you are talking about. Valve timing should be set to cam mfg recomendations. Probably straight up for that cam.
Ignition timing will have do be done by experimentaion, or from advice from others running a similar set-up. Basically, you want as much advance as possible without detonation. Since that cam has a fair amount of overlap at idle, you can probably get away with more initial advance than a stock 302 would run.
This cam and your car really have nothing to do with Fox bodies.