I'm going to start digging for a 351 this week, and I was wondering what the differences in reliability and performance would be between a roller block and a non-roller block? And how reliable are the retrofit kits to make a non-roller a roller?
Any help would be appreciated so I would have a better idea of what to look for. Thanks in advance.
Any help would be appreciated so I would have a better idea of what to look for. Thanks in advance.
