My 2000 will do it if I go for a hard run then stop with out putting the blowers on.

If I have any kind of an idle time after the run it starts just fine.

Turn the blowers on, crack the hatch,,, idle for a bit ,,,,, or any combination of the above and I bet it goes away.

I am new to the site, I have a 2000 29 with 454 mags and I am having a similar problem with one engine.

What does the kit consist of?

an electric booster pump and some wiring,,,,, big help if you dont have the mechanical pump on the sea pump

Thats what mine was 2000 w 454 mags. Get the kit problem solved!!

I run my blowers continuously while my motors are running, just in case.
This year, whenever I come down to idle, or shut it off, I open the hatch for a little bit to let some hot air out.
So far this year, I've had 0 problems with vapor lock. I don't even have the plastic cans around the water seperators any more. Too much of a PITA to put on.

i too have had the dreaded vapor locking symptoms in my 502mag...however, after posting on here and everyone saying to buy the kit to fix it i found out that in fact mine had it already.....what i ultimately ended up finding out after many days of pulling my hair out is that my mechanical fuel pump itself had a gasket fail internally and let raw fuel into the sealed area...this caused my oil inside to basically be worthless and gave no protection....the arm inside had worn down some where the cam makes contact with it and didnt have quite enough fuel pressure to pass the vapor lock. i ended up putting a new mechanical pump on the boat and its ran flawless since.