Thanks rumble! Yes I ran 12's with the magnum Headed 408 I linked above. Now I run 10's and trailer the car to the track with my bracket engine....lots of times I look at it and wish I had the street bruiser 408 we sell....pick your battles, and in this case (and many others) you can't build something unless you are reusing used pieces parts, for what we can do ya a finished engine for.