Yeah didn't have trouble before ac but yesterday was the furthest it's been driven since I ported the lower awhile back. The water looks like its on the lower in the rear where it bolts to heads. Just a min ago I tightened down the lower mani bolts in the rear, they turned maybe a full turn. The. I cranked it up to pull in garage and it wouldn't idle. This was 1st start of the day. I kinda think I have a iac issue going on also but not sure