Jason,

How many hours?

Might also have the headers pressure checked. You may have a leaky one. Also, depending on who's working on it.... don't get sold on " your heads are bad and you need new ones." I won't name him/them, but someone you have to know on the lake, tried to tell me mine were bad (2 summers ago). So, before letting them work on it, I had the heads shipped to my engine guys here in Houston (Owens Racing), and it was fixed --- majic!!!

Turned out, I had a bad alignment pin (aka... something or the other -- don't remember the tech. name for it).

In any event... I'd check the headers.

YES good call! Also a very wise old Wrench (no not wench) told me when I was young and stupid, Start with the cheapest work to the most expensive part. With a little modification I used that with my students, Check the easiest and work to the hardest.

Try using Blue Hylomar around the water jackets on your intake. I have had great success with this on all water passage gaskets. It doesn't get hard and seems to be a good corrosion inhibitor.