Update! Got the lower intake replaced. Driver side rear cylinder location had a break in it. Re-assembled and ... no change. Based on a suggestion from the FB page I unplugged my MAF. Idled high, as expected, but smooth! After a few minutes it came back down it's normal idle. I cleaned the MAF with carb cleaner, and that worked for about 10 minutes. Then it went back to running wonky and weird misfires. I unplugged the MAF again and it sorted itself out. I am going to go get some MAF cleaner in the morning, and if that doesn't work, I will be dropping a bit over $100 on a MAF. I really hop I can just clean the damn thing.