i currently run a 1025 race demon RS on my 400/512 combo, would i get a big gain if i fitted a 1050 dominator or would it be nominal? also in the past month 2 people i've talked to about carbs say you can get dominator carbs on a 4150 base?? i've done some nett surfing but can't find any info on this set up. is there such a carb or have these boys been smoking something thats stronger than the govt allows?? lastly if i was to change to a 4500 flange carb, are those promax adaptors the way to go? someone posted a pic of one of these adaptors the other week & they really look the part.