Ok, I still need to clarify some doubts and before installing my supercharger Whipple. I've been finding out about what is most beneficial to run 420 RWHP on my truck Ford F150 FX4 5.4L 3V 2007, but I think you are the ones to advise me. That is more beneficial and safe for achieving these 420 RWHP,which is the maximum power I want to get, 10 RWHP above or below.I still maintain OEM motor, OEM transmission, and long life. I'm not going to compete, just want to feel the power in my truck.So I installed a 95 mm MAF, or should I install a pulley for 10 psi.Soon be installing some additional Efans this project. I suggest. I do not want to buy unnecessarily, I want to install right and necessary.I've also thought longtubes headers, but I worry because I shortiesand were a headache, is very fast and repeated damage, andlongtubes must be worse. So I keep in manifols OEM exhaust.Thank you.

 

You have the Non-Intercooled Whipple right?

DO NOT RUN THE 10 psi PULLEY. Your IAT will be too hot and the truck won't make any power since the PCM will pull timing/fuel to cool the IAT off.

If you have the Intercooled Whippled, a 10 psi pulley will make well over 420 HP


E-Fans are a good idea. Less parasitic drag, help the motor rev up quicker. Make sure to get a good kit with 2 temperature triggers.

Shorty headers are worthless. They're only made because people will buy them. Like a Throttle Body Spacer

Longtubes are great. Combined with a blower, they can help put some serious power down. But they are not easy to install. And very expensive. I personally wouldnt do LT's unless you are trying to get alot of HP

 

I have the supercharger STAGE3MOTORSPORTS acquired. Part #: WK-200332B, and the descrpcion reports: The system boast a massive aluminum air-to-water intercooler Designed and built by Fluidyne That mounts inside the cast aluminum long runner Whipple intake manifold , then I have 39 lbs injectors, you believe that, with 8 psi, 90 mm MAF and Efan could reach 420 HP engine without compromising my OEM, if I go to 10 psi, I have to necessarily install the MAF of 95 mm. Thank you.