[nicky g]

I don't understand why you would raise with jc8c?

On the flop, move all-in. You have a massive hand, and it's probably favourite against a single opponent with something like top pair (or in this case, second pair), and your opponent might fold, giving you massive equity. The more people you let in however, the less likely all your outs are good, and obviously if you don't raise not everyone is going to fold.