which is the best tubular k member and a arm kit to run on a mostly street car but with alot of strip time? im gonna run coilovers if that makes any difference.
Maxiumum Motorsports is the best hands down. They are the only K member that hasn't failed on the street or track. AJE has always had quality issues since they started. Most guys will piss and moan because the MM K member is heavier by a few pounds and unless you are building an SSO car, which by your post you aren't, the minimal weight savings isn't worth it.
For the street run either Bilstein or Koni. The spring weight would be up to you depending on how much street/strip time.