Best way to get 300hp from fox body

[Unit 5302]

The extrude honed stock intake will have to go to make the most out of the TFS's. You should pick up something more aggressive (the extrude honed intake is actually a little inferior to the Cobra and GT-40).

I'd recommend the TFS Street Heat intake for about $400.

You'll also need a cam, and some rockers if you decide the TFS heads are what you are looking for.

The World Products Windor Jr's are not superior to the GT-40p's and GT40s. Flow testing shows the Windsor Jr's are very linear in their flow rate, and at .500 lift both GT-40 styles flow better. Exhuast is another thing altogether. The Windsor Jr's flow hardcore on the exhaust, but you don't need that much flow. 75% or so of intake flow is all you want. The Windsor Jr's flow about 85%.

Not that I think they are a bad head, but I would put the GT-40p's up against the Windsor Jr's any day.