my car's mod's:

-ported intake (i believe upper only)
- slp 1's
- 3.5' pipes from slp's out
- u/d's
- k&n filter
- dr. gas o/r x

** my car dyno's 319rwhp (std) before the u/d's and tail pipes**

now if i added comp cam stage 3's with a tune what number's could i expect to dyno?

and i know the cam's are around a 1,000 + spring's 300ish. now how much is the install usually?