Slight miss/gray white smoke

Hey guys having another issue with my 03 Launch SSV, Notied yesterday after about 4 hours of use, while pulling up a skier a slight miss untill on plane then goes away, problem repeated for about another 30-45 minutes then trailered it. Boat idles fines has no loss of power and also noticed some white/gray smoke while on the water thoughts?

Things I have recently done, in the past 50-75 hours: 250hours total on boat

Replaced both fuel injectors (this was the problem last time that was finally solved)
Replaced fuel pump
Fuel filter replaced 4-14
Fuel lines cleared
Fuel tank emptied and cleaned, Fuel pickup line checked and mesh guard cleaned
Just changed the oil and filter before the weekend

We've had a lot of rain Lately down here in Texas and I filled the boat up after the first day of sun, When the issue started I would say I had at least 8-10 gallons of gas in the tank.

I've also noticed that I seem to be burning through 40 gal of gas in about 5-6 hours which is more than usual with the old injectors. Possibly running rich? Have I fouled spark plugs. Boat was difficult to get started when I got it home and put on the hose. Would new fuel injectors mess with the computer?