I think you will be fine with that carburetor and with a 4 speed I think the cam will be just right for a street car.
You didn't mention what you have for cylinder heads
BTW I think you could get more out of that combo with a 557 solid cam if you have the flow for it
Gus

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64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60