I don't think the reeds are the same. The 150's are 4 port and I think the 200's are 8 port, not sure though. Also the tuner is different. You should have the good exhaust divider since yours is a ProV but look at the part # compared to an Excell. My suggestion--Excell 225 carbs, tuner and reeds, 220 heads and a 27 pitch prop. Look around the parts are out there at decent prices.