My motor is basically stock with a performer manifold and I have had the Carter AFB carb for over 20 years. It is the same as the Edelbrock one and it does not have a power valve. I think it is the 625cfm model with vacuum secondaries. I had bought the jet kit and dialed it in myself. It is also easy to rebuild if needed. I have found it to be a good trouble free carb for a stock application.
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