Agree with the above...

Driver mod is always an important one to go along with the test n' tune. I've seen Hemi 'cuda barely get out of the 15's. Yet that same car on that same day with a little work and a whole lot better driving could have see 12's too imo.

In your case, all things ideal including traction/suspension, 12.7's 108.

1979 Dodge Lil' Red Express - 360 rwhp, 13.2 @ 103mph
1968 Coronet: 318, 2.76, 15.2 @ 92mph! (SOLD)
1976 Valiant: 360, 3.90, 12.90 @ 106 (SOLD)
1989 Shelby CSX #500/500