Lower intake porting

[Chilicat]

Im gasket matching a 94 z34 plenum and lower intake, should I port and polish the
whole lower intake???
Any advice will be appreciated , thanks

Chilicat

[SappySE107]

RE: Lower intake porting

go for it. The lower intake varies, I have seen decent ones and some that need a ton of work. The side walls could use a good clean up.

[Chilicat]

Thanks!!
What about the plenum ?, (extrude honing out of budget) read something about acid
porting, worth it?

[your_I.D.]

Ben have you ever tried using flexable ball hones? To do upper intake plenum. Thinking of the 97 type with the long runners.