The correct carburetor depends on when manufactured. The early models used a Carter RX-0 which are fairly common. They have smaller valves and distributor cap with ears for the retaining clips. The later used a Carter RAJX-0. Had larger valves and depression in distributor cap for retaining springs.
Email me for availability and price for guaranteed rebuilt carbs. You can find my email address in my profile.
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How Sweet the roar of a Chevy four!