Hi, new to the forms here but got a very important question to start. got a decent budget to build myself a 500 stroker but wondering whats the best era block to build it with. Ive been told go with the mid to last 70s blocks and stay with the "B" for more strength but is that correct or is their anything wrong with going with a early late 60s model block that is "RB". any help here is greatly appreciated