420A head build?

[Jacknarciso1]

Alright so I'm new to these forums. I have a 98 eclipse rs 420a. So far, I have a stage 1 Hahn turbo kit 5lbs, 30lb injectors, fuel pressure regulator, greddy catback, and afc super apexi. I would like to start building the head. What kind of options do I have right about now? I have money so I don't want to go cheap on it. Also, I was looking for a new intake, as well as boreing out the throttle body anywhere from 55mm to 60mm, any suggestions? Thanks.

 

[mercaholik]

Well it's not that simple to just bore out the throttle body 10mm, you have to get a bigger throttle plate and maybe modify the shaft. I know it can be done but it would probably be cheaper with like a mustang or some other aftermarket t/b. There is s way to use your tps. As for the head if you wanted to pull it do some mild casting clean up and smoothing out. Then smooth out and polish the combustion chambers, making sure they are all cc'd after, then a nice 3 angle valve job and cams.