Ignore all the stuff about manual vs. automatic... If anything, the auto is a little faster in straight line acceleration, because you get perfect shifts every time! People will argue, but the truth is an auto is under control of a computer. Idk. But anyways... You should be sub-5 seconds with your mods. What does the butt dyno read?
This is exactly what I was trying to get at. 0-60 times are quoted at or around sea-level. Altitude will have a huge effect once you get above 1000feet or so. If you living above 1000 feet, your not going to get below 5 sec. I live in Denver, 5280 feet, and my 0-60 is probably 7 sec. or something ridiculously crappy like that. My best quarter mile is 14.8. Now.. the competition is the same, because everyone is negatively effected by the same amount. I ran with a Roush charged vert that pulled a 14.6. Most stock Mustangs up here run 15s.
LOL butt dyno is an expression for how much power/performance you feel the car has. Does it feel faster than 5.77 seconds?