With the 572 and original B1s your gonna need to be ported pretty decent to stay with that ci and on alky... yes I would stay with a H-beam rod... compression wise I would stay in the 14.5-15.0 range... a bracket car likes the compression if you have to play the line on the top end(compression responds quicker)... on the cam I would wait and see what the head flow looks like before you look at cams