The pics are of the front block. We are referring to the rear block. It will have a plate instead of jets.

On the block you have pictured is the main jets. They are screwed in and have # stamped on their edges.

A 6.5 PV is just fine. A 10.5 will be open almost all the time and cause poor fuel mileage.

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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