Turned out to be the timing that was off.

So I took the (stoboscope) timing lamp out and checked the timing.

After that, no more issues.

The DUI is a good way to go BTW.

After it's warmed up and you slow down to get the skier, does it idle good and only act up on takeoff or is it a lousy idle as soon as you slow down ?.

Does it die as soon as you try to take off, it sounds like it from the description? or does it get up a little speed and then die?

What's your idle speed in that video?, maybe it the camera angle, but it looks pretty low

What do you have to do to start it again (besides turning the key  ) ?

thanks ken for the questions...........

1) After the boat warms up, it idles good and seems to have no issues from the pier to the main part of the lake.  We stop while in idle to get the boat ready for a skier and then once the skier is ready it would stubble and die during acceleration.  

2) It dies as soon as I try to take off once there is a load after we go from the pier to the main part of the lake.  Anytime after it dies the boat runs like crap and sometimes I'm able to idle back to the dock (without acceleration) or sometimes I have to paddle in.  

3) Correct, idle speed was at 500, after the video I did increase the idle to 700 in neutral.  Last mechanic likes to keep the idle low.  

4) To start the boat back up, most of the time its no throttle is needed, just turn of a key.  Few times it requires throttle while turning the key.  

Now I did forget to mention, the last time the boat acted up on Friday I paddled it back to the dock and decided to take a peak under the distributor cap.  I saw some moisture and corrosion.  I did dry it out and had some fine sandpaper to clean up the cap as well as the rotor.  Maybe its a moisture issue?  Maybe it's bad Napa Automotive cap (installed last year) but I did use the gasket. After I did that, the boat started up, I increased the RPM"s to about 700 in neutral and idled it to the gas pumps.  I filled her up, acted little funny at the pumps but did not die and then idled back out to the main lake.  By then we were able to ski.    Took her back out on Sunday and no issues at all 

Thanks Ken, so far so good after installing the DUI regarding the random stalling issue.  Will be testing again this weekend with 1/2 tank of gas but I think it was the cap/electrical issue.  

Now, DUI is amazing, starts right up with no throttle pumping after warmed up, just turn of a key all is needed. I'm still trying to figure out the cold start as it seems that I need to pump the throttle more then I would like, 3-4 times, before she fires.  The next day, I'm noticing no fuel within the site glass after sitting which maybe the fuel bowls are emptying out over night????  Also noticing whitish smoke once started which maybe its from pumping the throttle to much during cold starts??  Its a new QF carb, Holley is telling me its possibly pulling vacuum at the gas tank and for me to inspect the vent hose?? I did install new anti siphon valve, vent hoses, etc end of last year.  

Thanks for helping out 

My bowels always want to inconveniently drain down in the middle of the night too, 

Your carburetor should have the backfire protection check valve from the factory.

I'd get a little drain container and pull a lower bowl screw on each bowl to see if they really drained down overnight or maybe they're just below the sight glass.

For the front bowl, you could pump the throttle a couple of times and see if you have flow from the accelerator pump to give you an idea if that bowl emptied itself.

It looks like that ugly rust spot has been happening for years