If you're willing to go a little south, there's Performance Engine Development in Puyallup. They're a little more expensive, but they do the job right. They do a lot of the big name guys in the area (racing and street stuff).
these guys are chevy folks. my dad had his 383 freshened up between seasons by them. the car went 11.80s before rebuild and went 12.50 after rebuild. this was 8 yrs ago but that is what we got out of them. cope brothers does good work. Water house machine went out of business recently or i would have recommended them.