New engine problem, need help !!!

:? Just finished a 318 rebuild (complete rebuild) about 2 weeks ago. Still have only ran about 10 miles, no speedo yet. It seems to be running OK.

Today I pulled the plugs except 5 and 7 because of the darn Headman headers, I'll need a special tool for those. #6 seems to be wet and colored different than the others. I think it may be coolant. I had the machine shop check the head before the head job.

I have built several engines over the years but never a Mopar small block. Am I missing something or do I just have to pull the head. I will do a compression check before doing anything. Could the valve guide be messed up leaking oil? Humm.

Any suggestions would greatly appreciated.

Luis