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Well i hate to break it to you, but a 4.3L is a v6. V8's are 5.0 & up. And the 4.3L has a Two barrel TBI model 3210... throttle body injection... 2 BBL...670 CFM.

Actually on a Caprice, a 4.3L is a V8, its a small V8

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Q: What size throttle body is on A 4.3 v-8 Chevy motor?
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