Ok i plan on getting a edelbrock TBI intake, lt1 cam, and 3.73s pretty soon. with that and what i have in my sig you think i could beat a stock 5.0 stang?? also this summer i plan on new heads...how about then? i also want to stick a 75hp shot of n2o on there...could i beat a 4.6 then??

You're definitely on your way. With new heads I think you have a very good chance at beating your dad's 4.6 Mustang and definitely your brother's Mustang. If the mustangs are autos, you'll beat them for sure. Auto Mustangs are slow, I know Nic will bring his timeslips in for his auto mustangs, but in reality, auto Mustangs are slow.

Oh I just saw that the Mustangs are autos...yeah you have an awesome chance, and with eliminating the TBI weak spots; heads, cam, exhaust, you got it made.

You should have no problem. Your gear will kill them, souly. You should give them a good whooping. Good luck

Stock auto Mustangs are slow, why they couldn't put a better converter in there is beyond me.

Mine went 14.8 @ 92MPH bone stock. That's a tad bit quicker than most Auto 5.0's run. Current time and mods in sig