cam install- is this normal?

[brooksgnm]

Okay I just put in my e-303 cam, but I've got a few questions. When I put the cam in and put on the retainer plate it had a ton of endplay and I mean a TON like more than 1/8 inch. Then when I put on the timing chain and sprocket and torqued it down I've got .000 endplay, as if the sprocket is jamed up against the retainer.....I thought there was supposed to be a little clearance there, or is this how it should be?? Also my timing chain is very very tight like I can't hardly move the chain, is that normal for a new chain? It's a Comp magnum double roller if that matters. I'm 17 and this is my first cam swap so go easy on me if I'm doing something stupid! Thanks for any help! -Mark