Cm2250 vacuum on coolant system?

[diesel607]

Kind of what I figured also, just weird. Normally they build 20-30 lbs of pressure pretty quick when a liner and head go. Am I aloud to list names on here for who did the delete? It’s not a big box shop demandate, don’t want to get myself in a pickle with throwing names out there. Motor has 373xxx on the demandate.