i have a 350 with s10 motor mounts on it right now. what motor mounts would i need to fit it in?

Is your 350 a Chevy 350?
Just a word of advice: If you get a Buick 350, all you have to do is take the motor mounts off your Buick V6 and put them on the Buick 350. Then you drop the motor in and connect everything up. All of the Buick accessories will swap over, the distributor is in the right place, the battery and fuel line is in the right place. And the Buick 350 produces more torque.

Just some thoughts.
MARK

oops sorry about that its a chevy 350. i thought that would have be a little obvious with saying just has s10 mounts on it right now.

You'll need to remove your old frame mounts and drill for new Chevy mounts. I'm too much of a Buick purist to help you out much further than that.

Why are you putting a Chevy motor in there anyway?
MARK