carbi size for a 253
engine is a blue 253 yella terra heads flattop pistons 30thou oversize, i replaced the cam,lifters,and pushrods with a standard black 308. i have 2 options for the intake and carbi. first is a holden standard 2 barrel manifold with a brand new 350 h0lley or a standard four barrel with a eddlebrock performer 1405(600cfm). cam is only standard.
would the 350 be too small or the 600 too big
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