Back on topic.
If I recall correctly, most of the 69 Mach 1’s came with the 351 Cleveland, options were 428 Cobra Jet with and without Ram air and 428 Super Cobra Jet.
I think the EVO can take the 351 cid Mach 1 and should have a reasonably good shot at taking the Boss 429 in the ¼. The EVO should do even better against them 0-60.
The only info I have for the top performing Mustangs from 69-71 are as follows:
69 Mach1 428 Cobra Jet, 335 HP. 13.90 @ 103
69 Boss 429, 375 HP. 13.60 @ 106
71 Boss 351, 330 HP. 13.80 @ 104
Please see Muscle Car Club link below.
http://www.musclecarclub.com/musclec...s-50fast.shtml