i have a 1996 900 zxi when i got it it had a skat trak 15-20 impeller and it buried the 8000rpm tach i installed a solas x prop 19-25 and it would run around 7500 rpm and it was faster. however i just bought a solas housing and it came with a solas concorde i think 16-20 and it runs around 7500 i think around the same speed as the 19-25 but it is 148 mm and the old housing was 140mm my ski has few upgrades reeds, waterbox and ocean pro flame arrestors but i plan do do some engine work over the winter carbs and exhaust maybe a bore. any advice on what pitch i should put in the new pump? or just do upgrades and see where it goes from there?