Do you have a MSD box or just use the Streetfire as a stand alone distributor? If you had a box I would buy this Crane Distributor. http://www.cranecams.com/userfiles/file/408.pdf
. I have two MSD Pro-Billet 85561. One brand new. The other has been rebuilt, new shaft, weights, springs, pick-up, Chevy style cap and rotor. I would sell both of mine to have that Crane.