HP seem right to you???

If your running the stock cam id think those numbers are good. Aren't the 318s rated at like 170 hp stock to the crank with no accessories? then you factor in accessories and drive-line loss. The intake and carb probably helped a little but id think that 318 cam is holding it back. Even worse if its a high miles motor that cam could be wore out a bit too turning a wimpy cam even wimpier.