I am looking to upgrade the suspension on my 99 SS over winter. I currently have tubular rear lower control arms, and BMr tubular SFCs. I drive the SS mostly on the street but plan on seeing a lot of the track too. I want to lower the car a bit to remove the wheel gap and help in handling. Here are my objectives for the car:
60% street driving with either Fikse Fm5s 17x9.5/17x11 with Yokohama A032R 275-40zr17/315-35zr-17 tires.
or
Chrome ZO6 rims 18x9.5/18x10.5 with Michelin Pilot Sport 275-35zr-18/295-35zr-18
or
Centerline Galaxy rims all four 17x9.5 with Yokohama A032R 275-40zr-17s
30% drag racing with Centerline Telstars:
15x4 with a 26x7.5 MT Sportsman front
15x8 with a 26x10 MT ET Street
10% autoX with Bogart road race wheels:
17x9.5 front w/275-40zr-17 Yokohama A032R and 17x11 rear with 315-35zr-17 yokohama A032R

I will be using either a fully adjustable Spohn or Madman torque arm, adjustable rear panhard rod, and 12 way adjustable HALS with springs. I would really like to lower the car about 1.5 inches but with long tube headers that could pose a problem. Is there a way to have the adjustability of the 12 way HALS for street-AutoX-drag, and also be able to drop the cars ride height at will and raise it back up if needed? Lets say I want to just cruise around at my local hot spot, so I lower the car 1-1.5 inches. Then I decide I want to go somewhere and I have to go over some rough tracks or really rough road or pull into one of those driveways with the huge bump up from the road way, at that point I need to raise the car, at least to the OEM height. I also plan on a WOLF 6 point cage. As you can see I plan on spending some cash this down season, but I need your advice.Is this suspension possible: to have the 12 way adjustablility and ability to control the ride height too.