can i do this with a dremel on my h23? i got a 66mm throttle body so ifigured i'd port match my stock mani....yes no? gimme your thoughts...thanks!

 

bump!

 

yes you can do it but it is very time consuming and tricky task. it if you don't bore it out enough the air will pass thru and hit the lip of the manifold causing uneven flow and pressure fluctuations, also the gasket fit will be a problem, and if you bore it out too much then the air will flow over the lip of the TB and create some back pressure causing the same thing. The answer to your question is yes but you've got to be good with a dremel. i recommend taking it to a shop to get it done right. Me i upgraded my TB to 68 mil and instead of boring out the stock manifold i bought a skunk2. worked out perfect. hope that anwers your question.

 

dammit...why does everything seem to be sooo damn hard to do...lol...has any1 done this before and have any tips?

 

dremel worked fine. Took it slow and port matched the IAB's as well.