I guess Mercruiser tells their dealers to use a Brady-valve for vaporlock issues but won't tell the customer.. WHAT A-holes..
They create a problem and want you to pay for the fix...
Anyone know where to get these, how much and how to put on...
Or anyone want to get on a bus and visit Mercruiser and crap on their lawn..hahaha would love some help..thanks guys and gals.

I think you are looking for a Schrader valve, or maybe the Brady Bill, or Brady Bunch ..........
You can bleed a vapor locked fuel rail with a Schrader valve.
Regards,
Steve