Mach1newbie

Did the driveshaft make much of a difference?

2007CalSpec

I definitely felt a difference. The car was quicker off the line. One of the best mods next to a supercharger.

2000AZ5.0GT

Is your procharger intercooled?

If not, that's the place to start. That will lower your intake temps, so even after driving for 2 hours, the car will perform consistently and put power down.

After that, Headers and a Throttle body will give you a decent bang for the buck *since you're already supercharged*. On a N/A engine, I doubt you would make much power, but with the blower, it will definitely help.

Those things alone will probably get you to where you want, power wise.

But, not trying to be a dick, you may not realize how bad your traction is right now. Most STOCK mustangs benefit a ton from a better suspension, and it is literally the foundation of everything else. But if you don't feel fast enough now, when you get to 420whp and you're spinning even more, you'll feel even slower.

For example, my car probably puts down 350ish (being generous) since it's stock. I can still spin the tires in 2nd - 3rd gear at WOT.

My 2000, when it put down 560hp, would stick on Drag Radials on the street in 1st gear. The benefit was suspension. That same car went 1.67 60' at the strip with street tires. Granted I had a built IRS out of a 2003 Cobra, but I still suggest suspension.

Also, with a new throttle body/headers, you might need a tune to take advantage, and you definitely will should you bolt on an intercooler. Suspension mods will make you feel faster without putting your tune in jeapordy, so that's where I'd start.

Soldier GT

Probably? Have you ever had your car dyno tuned? If not, that will probably be your best bet. Also with a fairly stock FI 2V you're not going to push 380 to the wheels, more like 350 . If you plan on going over 400 rwhp you might want to think about getting your engine forged.

Simon1

Best bang for the buck mods for me, combined with supercharging, was gears and traction mods. Traction mods are a combination of suspension pieces and tires. Tires are my recurring expense that probably sets me back the most.

Another thing to consider is planning a clutch replacement. You probably won't need it at first, or maybe you'll need it immediately. But it will be in the cards for sure.

Having all that power to play with becomes frustrating when all you do is spin tires.

Mach1newbie

Thanks for all the input everybody. It looks like the majority is pointing to getting better suspension mods. I guess that's where I will be starting.

Mach1newbie

Gears are always great! But this is my daily driver and it sees a lot of highway and freeway time. My 72 mach1 has some good gears that made all the difference for that car

Mach1newbie

Yes it is intercooled

Simon1

You're talking 1-2 mpg difference in highway driving. But to each their own.

That's if you switch to 4.10s.

sactown

go with the gears, it will wake the SC up