As unconsistant as blown fuel jets are I would have to question the validity of the six mile an hour gain with a stock bowl. Now if he had totally screwed his bowl up I guess it is certainly possible that the stock bowl would work better. If on the other hand his ported bowl had been properly done(whatever that is) and the stock bowl still picked up six miles an hour that is definitely interesting. Hmmmmmm?????
Hipshot ... I would take MJ680's word for it ... he's been racing longer than most of us have had boats ... and Bill Henderson's Rated X boat was a very consistant & competitive BFJ back in the day ...