Air Gap question
 

Edlebrock air gap, just got in the mail.

anyone ever get theres polished? they seem kinda rough inside

would it be worth it?

Air gap intakes aren't the best choice when matching with TBI. TBI intakes need to be hot to fully attomize the fuel fix before it gets sucked into the heads and turned into hydrocarbon waste. I believe past tests with TBI and air gaps have shown fuel puddling at the base of the intake.

I think he is trying to say, do not polish it!

The roughness will help atomization.

Air flow is like a bell curve, most of the flow is in the middle, so the slighty rough runners don't need to be polished.

Although they polish exhaust ports to reduce carbon buildup.

Yeah, what he said, you never really want anything polished on the intake side. Sometimes people even rough up some spots in the intake ports on heads if they're too smooth. So, no, don't polish.

I also agree with Shifty, I would go for the normal Edelbrock manifold like the RPM or Performer non-air gaps. A hot plenum is better for TBI's, some have seen icing on throttle blades when the manifold is run too cool.

The RPM with a TBI-Carb intake adapter will actually allow the TBI on a very humid 60* day to ice up if it idles long enough. Ask me how I know. Couldn't even open the throttle to drive away after idling for about 15 minutes one day. Had to kill the engine and let the ice melt. Then I stuck the Thermac air cleaner back on.