What do you mean by "faucet"? The tub spout? The entire valve? The cartridge? If you removed the "spout" and there's plenty of pressure and water try a different spout. Pictures would help a lot to understand what you are talking about. Is water coming out of the shower pipe with good pressure? Most new shower heads have a pretty small restrictor built in to them to conserve water. I can't tell you to remove it or drill it out but doing such a thing would increase water flow.
Try to clarify a little bit and we should be able to help.
Last edited by Johnboy555; 09-09-2011 at 01:32 AM.