Not Ranked
I don't know about 'more' 428's than 427's, a count would be interesting but difficult to nail down I suspect. Consider this: Shelby went with 428's due to a shortage of supply with the 427 and the much higher cost per unit. BUT, he only did that for a short while, returning to the 427 in spite of cost because of 'popular demand'. He started with 427's and ended with 427's. A smattering of 428's in the middle? Perhaps...
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