i have a 2001 f-150 5.4 with a powerdyne charger,airraid throttle body spacer, k&n filter and flowmaster exhaust, can anyone tell me how to make it faster please....

 

ditch the throttle body spacer...

look into swapping the fmu, for 39# or 42# injectors, a 90mm MAF, a 255lph in tank fuel pump a good dyno tune, if you are not innercooled add an innercooler right away then crank up the boost to 10-12psi after the innercooler.

long tube headers and efans will help too

check out the supercharger / turbo charger room and look at the sticky's for mods and dyno sheets

 

I forgot to ask what powerdyne kit are you running? and is it innercoolercooled or not?

 

Also, what size is the upper pulley?

 

my kit is a bd 11-a my upper pulley is 2.93 which is supposed to put out about 9 pounds and it is not intercooled.

 

Get rid of the throttle body spacer,,it's not helping and may even be hurting your performance!
An inter-cooler or a water/methanol injection kit would help.
Long tube headers and high flow cats will get ya about 30 HP or more.
If you want to spend some money,,you could get ported heads and performance cams.

Phil