kwkracing I don't know about a small block ch ch ch chev chevy. dang that was hard say. I've got a few more questions though. would it be better to have a single pattern cam, would 1 3/4 headers be the right choice or 1 7/8, would I need a torque converter with a anti ballooning plate to use with a trans brake. also does a main support girdle really help that much. when I can I'll get some pics of the ol merc on here. thanks for the help guys.