Dang thing burped on me.....

[Fireman23]

I'm running the xtreme street tune and while hauling a boat to go bear hunting the truck puked coolant for the first time ever....lost power and made a pretty strange hiss under the hood. Pulled over let it cool and no problems. On the way back home same darn thing happened. Now she runs like nothing happened. I was pulling a boat up some pretty big hills. Boots was around 30s and egts in the 900-1000 range. Your thoughts? Thanks guys.

 

[Danbonzo]

Head gasket compromised and or head bolts stretched