Well, I replaced the radiator cap with the new radiator, so that shouldn't be the issue. I do notice that the level in the coolant bottle is actually higher, though, after driving. However, the cap on the bottle doesn't seal all the way...so I don't know if not having a sealed cap on that makes a huge difference? I checked the drain bolt but I can't tell if there's a leak there, however there's no steam. I'll call to see if I can get a pressure tester and continue to check for any other odd signs. (BTW...what are the signs of a cracked head/block...I had someone tell me at one point this was possibly a problem??)
Thx!