Doesn't matter if the carbs too small and my 9-second 470 HATES 4150's even 1100+ cfm as it makes it too peaky down low and will not support up top.........
Actually I meant, if the carb is too big, don't progressive secondaries help smooth out the response? Also thinking of something like a TQ with small primaries for good throttle response, but huge secondaries for wide-open.