What would you do?

I ended up talking to a guy at Summit Racing about that and he said that from what he knew the two vs four hole thing shouldn't make a difference as the computer would compensate for it. Every injector for the LQ4 that they had in stock was a two-hole (they pulled every compatible injector from the warehouse so we could inspect them). The only place I could find four-hole injectors was on Amazon from refurb manufacturers and the reviews weren't particularly positive. And especially since the official PCM one that I ordered from Miami Nautique was also two hole, I began to think that perhaps the motor was supposed to have the two-hole design in the first place and somewhere in the boat's history someone swapped them for the cheap four-hole injectors on Amazon.

I ended up going with these injectors from Summit. Yes they were remanufactured, but I didn't want to drop $1000 on a set of brand new injectors if it didn't resolve the issue. And I figured if Summit carried them then they must be decent. Since they did end up resolving the issue, I figure that if the refurbed injectors don't last too long, then I can commit to a new set of AC Delcos.

A little crazy to think that the engine rebuild and all of the heartache could have been avoided with some new injectors. ah well. Live and learn!