I have a B18C1 in my 1995 Civic. I am looking to retain my stock GSR throttle body and stock GSR manifold. But I want to bore the throttle body and port match the manifold to the new size of the throttle body.

I'm looking for all available shops in SoCal that can do this CORRECTLY.

I know I can go aftermarket, but I want to keep a perfectly stock appearance for stealth, smog, and legal reasons.