And as I recall, dcdoug has the "B" cam in his car. That cam is identical to my "K" cam, but has a tighter LSA. Whereas my 245/245 at .050" is set on a 114 LSA, his cam is on a 106 angle. My dynamic compression ratio will be a bit lower than dcdoug's because my intake valve will hang open a wee bit longer. There are various calculators out on the 'net that will help you figure out your DCR, but really you should rely on a smart engine builder who has used the components before. Internet engine building software only gets you so far....