^ Not at all, its just simple swap and they can take about 450ish..

 

Damn thats crazy .. hell i may need to get a mach1 then..

 

Most can take a healthy amount of boost with a stock bottom end. A ported eaton and aggresive pully can put an eaton swapped mach1 around 500rwhp

 

I owned a Mach one before I bought my camaro, you will win, they are a bit faster than a stock GT of that year, they are 305 hp and i think they come w/ 3.55's, see what mods it has, my stock camaro auto was definatly faster then my standard mach 1, plus she's a girl lol ( not hating) , but most ( MOST) girls cant street race
good luck

-- on a side note, with the headers you will be set

 

Mach 1s were more than "a bit faster" than a GT...

 

Driver race stock for stock.. longer the race goes the more in favor it is to the ls1.

They are usually within .2-.3 of each other and 2-4mph.

 

Well guys we might be on for this weekend along with another "built" N/A civic hatch.. except im not stock anymore. Just got my Hooker Long Tubes in, True duals w/Xpipe, SLP Lid, and a tune up..

As far as the mustang, there was a huge mis understanding, she clarified that her friend said its not a mach 1, its a mustang "steeda" ?? but looks like a mach 1... SOOOO idk wtf a steeda is or if its a mod but im not sure whats exactly done to it since my chick friend cant interpret worth a dam and i really dont want to ask the guy myself.. (im to pride full).. anyways ill try and get more info cause im very confused

 

Its a 2003 correct? Steeda makes Ford/Mustang parts. Its like a Shelby, Saleen kind of deal.... But the 2003 is based off the 4.6L GT with a S/C, K&N Filter, 70 mm throttle body, & a Borla exhaust. Its makes around 425 rwhp. So id say you better be on a A game.... Just be happy its not a 2006 version because you would get walked. Those come with a S/C 5.0 making around 500 hp. GOOD LUCK! Keep us updated. Get a video

 

Not all Steeda Mustangs come with a supercharger, the majority will be just the exterior upgrades along with some better suspension parts. The Steeda's were made more for handling than straight line performance