What do you think this will run in the 1/4?

Well, I hate to say it, but I think if you see mid-low 14's you should be very happy. That car bone stock is a high 15 low 16 second car. 7psi, a shift kit and some bolt ons won't do wonders for it. Lack of gears and real exhaust hurts too...and F 3.73's, go with 4.10's! Don't fear the gear!

Maybe mid 13's if the kit is aggressive enough?? Is it tuned?

Mid to low 14's Converts are heavy and your exhaust and gear has to go ASAP

I guess I was thinking if he fixed the exhaust and gears.... If you do I say mid 13's

As it sits now the shift kit will help but without a converter it's not gonna help all that much. A vert with a stock gear...man that's a pig even with boost. I'd say something in the mid 13s but it's gonna be a bear to get off the line because if you push it too hard it's gonna spin like a mofo if the tires break loose and your 60s are gonna suck. It should have pretty stout top end though so once it get moving it should go pretty good...might have a pretty strong trap speed. This is all just guessing though since i have no supercharger experience...it may be a total animal, may be a total turd.

Is it converted to mass air or does it still have speed density? If it still has speed density do a MAF swap and get it dyno tuned with the new exhaust and id say you have a mid to low 13 second car...

It's tough to compare your car to other cars...just because this guy's car weighs a lot more doesn't mean anything really. Your car weighs a good 3500lbs and it's gonna flex like a wet noodle which means crappy traction. Plus my guess was based off of your car being an AOD car, which i have no love for unless they're built and have a healthy converter that's matched to the engine and cam. If your car was a 5 speed it would be a different story, as well as if it were a hatch or coupe. Also from what i know about speed density is that it's only faster if you have a stand alone fuel management system like Megasquirt or something...otherwise if you put a cam in a SD car you're asking for problems. I would also assume that this Magnum likely has a superior suspension than us Fox cars have and probably gets the power to the ground much better....get some upper/lower CA's and subframe connectors and that'll make a big difference. Overall IMO, the lack of a stout converter and gears is what will hold you back from being a 12 second car...but that's just a guess. I've only ever seen one vert in person that was fast, and it was a 10 second car...it looked and sounded bone stock and the guy WOULD NOT lift the hood so nobody ever knew what he was packin, and it was a total sleeper.

Yeah that'll definitely wake it up...but i'd absolutely go with 4.10s for an AOD, even on a daily driver. The RPM difference is only like 300rpm on the highway and it will make a huge difference in your car especially with about a 3500 converter and your shift kit. All that plus the uppers and lowers, all that exhaust stuff and some drag radials and you'll be at least low 13s or high 12s...which is pretty respectable for a vert.