Factory manifold is actually a decent design on the 22re's. I'd buy a header but my future plans include a turbo so I don't see the point. Gnarly, number 4 piston is the one that blew a hole in my block and I'm pretty sure it bent a few valves. WHich of course I didn't check so now I get to pull the head off again. 3rd times the charm they say though!
