redghost.308

Gentleman, I'm looking for some knowledge and help with my runner. I recently replaced a few broken vacuum hoses on my 1993 3.0 engine. Since replacing these hoses, I noticed that my engine sounds better and runs a lot smoother, but now I have an high RPM when driving down the freeway. When I replaced these hoses I disconnected the battery to reset the computer to adjust for this, but still have a high RPM issue? Is there anything I'm missing here? Is there something I can adjust to lower the RPM? Any help would be greatly appreciated. Thank you...