The problem becomes that the cylinder intending to get its full dose of fuel is short changed by the next cylinder taking some of it and can go lean under high load conditions. Harry has fought this problem before also, that is why he no longer runs a "siamese" head. Not that it can't be done or shouldn't be done, but know that the issue is there. That is just something you don't want to have to deal with when running 15 psi of boost under heavy load along with everything else to consider.
