yeah, you'll be fine, i have a 289 with a holley 4bbl carb and headers and the car runs like it can handle way more, one thing though that you might want bigger tires to keep the car planted.
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Under Construction 66 Coupe
-289 V8 4 barrel Holley 600cfm carb - Headers - Flowmaster 2 1/2 dual exaust
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