Who makes a bolt on front coil over for a body?

May be looking into a front coil over kit for the front of my race car, who makes a 'bolt on unit' 73 duster, this is a race car set up?
the motor has been moved back, and all of the k-member is gone , i left just the torsion bars area and it is a rack n pinion

http://bobsprofab.com/

http://www.magnumforce.com/store/detail.asp?ProductID=2554

Do yourself a big favor and get in touch with Bob. His is a truly bolt-in kit that works.

Reilly makes a really good kit too, but it is quite a bit heavier than Bob's setup.

For a race car there are lots of options. CAP, Magnum Force, RMS, Bob's, etc.