87-90 are very nice prostars but so are 91-94's if it's within your budget.
I had a '94 with the LT-1 engine and currently have a '93 LT-1. My old 1988 Ski Eliminator had a carbed 350 but after owning F/I engines you get spoiled.
BTW, the 91-94 prostar slalom wakes are hard to beat, plus they have more interior space than the older ones.
I was njskier on here.