I agree with the other comments. Start with .060" jets in the center. The end carbs will be happy with .066".
I run .061" center carb jets in my 434 ci Tripower. End carbs are at .070". That's at 750 feet above sea level, not 5,000.
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BONESTOCK GOATS
'64 GTO Tripower Hardtop (Wife's Car)
'64 GTO Tripower Post Coupe (My Car)
'99 Bonneville SE Sedan
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