I can't wait to have PORT injection. The Holley Pro-jection worked absolutely flawlessly for 10 years on that '72 460. It will also be a plus to have an overdrive transmission. I am running 2.75 gears but with 24.5" tall tires, I still run an ungodly high RPM at 75-80 MPH.
Do you have any RDTs for Speed Density EEC-IV van 460s? 
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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