Tim.

Does it smoke? Burn oil? Coolant look fine?

It could be a headgasket problem dude. How many miles are on the car again?

I'm thinking headgasket because you recently changed the head, remember?

If you have to rebuild it. I can get a quote for a headgasket, main bearings, and new rings for you. If you want to do a mild build, my friend can get ZC pistons for 34 dollars a piece from Acura, so we can up the compression if you want.

Just holla at me before you do anything. My number is 675-4054.

-Jarrod