Feeding my 9 week old

I'm afraid I feed him to often. He eats 4 oz every 2-3 hours ... Is this to much?

[Clysta]

Not at all. Each baby will eat a different amount than another. As long as he actually eats the amount and doesn't spit up a ton of it after (something like more than half) then there isn't a problem. At 2 months old my sisters baby was eating 7 ounces every 2 hours and she's right on target for weight.