Originally Posted by K Dog
There's a million variables there, tough to say.
Quite honestly with only those mods, you probably wont see an enormous gain.
With the upgraded springs in the head, I would want to see a larger lift camshaft too. And some form of short runner IM to take advantage of both the cams and head.
Or the turbo would really allow the head to shine as well. Fact is with the mods you've got now, the OE head isn't a big restriction.
Reading on Topspeeds website, they say that their Long runner intake manifold would be best for 90% of the consumers. And that the short runner would probably only be used in a really high hp/tq build.
I dont know a whole lot about this stuff, but doing an N/A build sure does peak my interest, so I'm just wondering why you say the short runner, is it just because you want us to build the
* out of our focus that we need that high powered rediculous one? lol
Heres reference: http://topspeedperformance.net/ford-...take-manifold/