Porting Edelbrock RPM air gap

[matt030305]

Hey FABO, I plan on gasket matching and conservatively porting my edelbrock air gap this week. This will be my first port job and I noticed how the air gap has one side for the bottom runners and another side for the top runners. Im just worried about cutting into a runner accidentally.

Does anyone have any outlines or guidelines to port the intake? Thanks!

 

[TT5.9mag]

I’d cut the divider down about half way if it isn’t already, then port match it and go up the runner about 1 or 1-1/2” and then send it. You will likely not make it any better than it already is. In fact you could make it worse.

 

[roccodart440]

Port match and blend it up from there. That is a pretty good intake, perhaps the best dual plane available. If you want something beyond a port match and blend, i'd be talking to an expert, like IQ52. He ported my intake. While he is retired, i'm sure he can answer your question.

 

[PROSTOCKTOM]

Do not remove any metal from the floor.

Tom

 

[forphorty]

Here's an article where an RPM Air Gap for a sb Chevy was ported. Flow bench and dyno results ,before and after. Porting the Air Gap resulted in less hp below 6000 rpm. https://www.hotrod.com/how-to/hrdp-0802-chevy-intake-manifold-porting/