I've got a low mileage 454 and a 700R4 sitting in my shop that needs to be in something so I'm thinking my 55 but I like to ride and my 327 4 speed gets about 14 to 15 MPG so if the BB can get around that I might swap. The 454 came out of a motorhome with around 30000 miles and is stock. So what is the best mileage ya'll have seen with a BB?
Chevyhead
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