MeMike, I think it's time.......
If you want 12's on muscle you will have to build the car light. A reasonable weight for the body you're using would be 2600# w/a small driver and no cage. At that weight 12's would not be too tough. A bar/cage is not necessary until you hit 11:49.
I've been 12:00@110 in a 3250# street car on the hose.
You want 10's you need either a turbo or Procharger. Alcohol would be the best fuel if that's what you're after.
Mike Jeffrey's number is 308/324-3576. This is the time of year he starts doing heads and such.