Is there an easy way to add EGR to a carbed motor? I hear it increases gas mileage quite a bit and can cut down pinging. I remember my old 89 camaro would get 25mpg and had no egr with the Ebrock 750 and Performer RPM intake, but the cam had plenty of overlap so maybe that was a crude form of EGR in itself. Any easy way to add EGR to a mild combo? Thoughts?