Deleting egr port
What you show there has nothing to do with EGR
EGR was not used until 72?
Egr in the early days (72) had no external control valve, but was injected into the intake manifold through "floor jets" in the intake, which went down into the crossover under the intake
Later "smog" heads for a smog pump had ports drilled into the exhaust port area, the pump injecting fresh air AFTER the exhaust valves.
Early EGR:
In the photo below, which is too large to post here, the smog pump port is the hole under the exhaust port
http://www.headbytes.com/images/340_X_mopar.JPG
What you show there has nothing to do with EGR
EGR was not used until 72?
Egr in the early days (72) had no external control valve, but was injected into the intake manifold through "floor jets" in the intake, which went down into the crossover under the intake
Later "smog" heads for a smog pump had ports drilled into the exhaust port area, the pump injecting fresh air AFTER the exhaust valves.
Early EGR:
In the photo below, which is too large to post here, the smog pump port is the hole under the exhaust port
http://www.headbytes.com/images/340_X_mopar.JPG
