Help me find the umph in my 360

OK, UPDATE TIME!!!

So first thing, The rpm being to high... found the issue, it was the tach. I never reset it to run on 8cyl mode when I swapped the slant 6 to the 360. Huge sigh of relief. So when I thought my car was idling at 1000 rpm was technically 600 rpm.
Second: attached photo is my exhaust was tapping my transmission cross member. So when I turned through a round a bout, basically a big circle for any of you that's never scene one, the exhaust had adjusted and basically had it tapping the crap out of my transmission mount. Took it off and dented the tube with a 4 pound sledge. Never going to let that happen again lol. I believe that was the terrible sound i heard and fealt this morning on the way to work. I'm stopping there tonight. I will work on looking at cam timing tomorrow and verify if it is truly set at top dead center or if was installed retarded/advanced.. And still maybe shop for a different cam. Maybe get a new one Maybe not.

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