P&P intake manifold questions

[Gatt9]

Hey all,

I was thinking about pulling my intake manifold to paint it and figured while it was off maybe I should do some P&P work on it, more polish than port as I don't know what(If anything) should be ported. Was wondering if there's any point to it?

In a couple months I'm going to be picking up a set of Abbott Stage II heads, and getting some form of Cam(Haven't decided which yet).

Tried searching, but everything I've seen pertains more to the heads than the intake, so I wasn't sure if it was worth doing or if it was just a waste of time?

I've a 98 firebird, with just bolt-ons so far.

Thanks everyone!

[97rs4life]

Re: P&P intake manifold questions

I would not polish those ports...they need some roughness to them. Usually you portmatch the lower to the upper and that is it unless you have heads to match up to as well.

[Meatyshells]

Re: P&P intake manifold questions

i thought it was ok to polish the intakes, and then when the fuel was introduced you wanted to have it ruffen up.

[97rs4life]

Re: P&P intake manifold questions

i thought it was ok to polish the intakes, and then when the fuel was introduced you wanted to have it ruffen up.

and where are your injectors? yea the lower intake ;) You want it rough to mix the air and fuel as it goes in

[Meatyshells]

Re: P&P intake manifold questions

well what i did was polish the upper intake and then did a semi polish on the lower intake. Port matched the upper to the lower, then the lower to the head which is finished with 80 grit