Ok, here's the deal. I was replacing the left head, so I left the right side timing chain and stuff alone. After the second time it not being right, I reset the whole timing stuff from scratch according to info I got from the Haynes book and the website jbrew provided. Thanks again. The crankshaft sprocket is one piece on my engine, not two. Apparently what the problem was is that because I didn't remove the right side chain, the one in front, I couldn't see that the chain I was setting would jump a link when I set the tensioner. Once I took it all apart and did it from scratch, everything now works like a charm. No spitting or sputtering, no loud clacking, and no bent valves! I guess that's just a lesson learned. Thanks for all the help guys.