I don’t know enough about cost and specifics since I haven’t been down that road, but info on the B1 stuff certainly is limited. I think part of the problem is also if you’re going to do a B1 setup and utilize its potential at all you’re into block busting territory. Personally if I have to pony up for an aftermarket block I think I’m going to go Hemi, but I do see lots of people at the track running aftermarket blocks with Indy heads and others.