1 slow D

I'm a novice.......need help!!!

Recently I installed a timing belt/water pump onto my civic. It was rather easy having mechanical background however this is the first honda engine I have touch in regards to these parts. I looked at the timing marks on the crank and cam gear, for some reason they seemed to look almost a 1/2 tooth off all the time. I tried to correct for this, but all I ended up with was the same 1/2 tooth off look. Maybe I'm seeing shit, who knows.

When I started my car up it high idles around 1500rpm or so. I figured it was just the warm up stage so I let it warm up, nope, it high idles even after I try to kick down that idle its still up there. It idled fine prior to my messing with things.

Any ideas would be helpfull.

Thanks in advance.