i put a vacuum gauge on my car today to tell me what power valve i need for my holley carb. I thought i would see around 5 inches of vacuum or so, but the gauge says i have 19

i know the gauge is right too, since it was calibrated when i picked it up from my dads work.

is there somethine wrong with my engine?
isnt this to high of vacuum? what do i do?

 

If you want less vacuum, you could always put a bigger cam in it.

19 in is about right for a stockish cam. But you don't necessarily use idle vacuum to size the PV; you look at vacuum under driving conditions. Watch what it is under all sorts of real-world cruising conditions, then use a PV about 2-3 in lower than the lowest reading you see. Typically, with a stock-cam motor and any kind of decent gears, you'll end up with a 9.5 or a 10.5. With the usual anti-performance grocery-cart gear setup like 2.73s and overdrive, with a low-torque motor, that may be too high though, because the engine will be struggling so hard just to keep the car moving (high load as far as the engine is concerned) that the vacuum will be lower, and a high-number PV will open at times that it's not really supposed to, and gas mileage will suffer greatly.