They are great grinds for old technology,they work good.There are alot of grinds that would work great for your set up but Im assuming you want the idle of a tight lobe seperation with fairly moderate duration and lift.I would suggest this grind from lunati over the isky though,its a bit more aggressive but has close to the same numbers at .050 duration and the same 108 lobe seperation so idle will be similar.
http://www.lunatipower.com/Product.aspx?id=1529&gid=277