Hooker #5303 headers for street Ok?

Three are the ones I picked up, I'm not sure though if they will go thru the fenderwell...
He said no (had them in a 71 Duster) but I think those A BODY cars were ok but older (69 & earlier) they look like they will go thru, but he said no thru go on the bottom.(good words)
Any help will be appreciated.

Maps

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Got em on my 340 in a scamp. Tight fit but no altering anything-