I took my head off to replace the head gasket. I put it back on and started the car. I noticed a coolant leak from the intake manifold. Also the idle was really lopey for a second and then it climbed quickly until I turned it off like there was a huge air leak bypassing the throttle body. Also, after I turned it off, there was a huge puddle of oil all over the floor. I didn't scrape the old intake manifold gasket off before I put the new one on. Could this be the source of my coolant leak and erratic idle/air leak? I am not sure where it is leaking oil but it doesn't look good.

I also installed a BOV and tapped the vacuum line connecting the intake manifold to the secondary butterfly valve. Could this potentially be a problem?

The car has been down for a week and a half and has been towed twice. I had it towed to my mechanic, and he wouldn't work on it because it was recently turbocharged, so I had to get it towed to a performance shop. I am just wondering if this is something I can fix myself. Please help if you have had similar experiences.