I reckon the 260 case is about maximum efficiency for the 6.5 bore before you start venturing into overbore status. Now I have no theoretical evidence of this, just my gut feeling after mucking...
Type: Posts; User: Mathias
I reckon the 260 case is about maximum efficiency for the 6.5 bore before you start venturing into overbore status. Now I have no theoretical evidence of this, just my gut feeling after mucking...