I have a 1996 Ford F-150 with the 302 , 5.0. I have a k&n air intake, headers with dual flows, and 4.10 gears. What should I upgrade next for more hp?

 

well bolting on stuff isnt the true way to make power... but if you made your intake more efficient and your exhaust efficient(but not too unrestricted, its fuel injection), then you pretty much have to start looking at internal engine building for power and suspension/handling for application. A key thing, power is usless if you cant apply it. Do you peel tires a lot? Weight over wheels or considering using an air shock on the.. uh.. I think passenger side to hold your differential to the ground can help apply what you have. And of course, never overlook tires.

If you are doing all this, looking at engine oil, trans(if auto), and coolant upgrades would be a good idea. And if you value safety, brakes.