1) what balance is it
2) comp ratio
3) solid cam or hyd cam
4) what is the cam good to rpm range
5) does it have hyd roller lifters or just plan hyd lifters
6) what heads if its a long block
7)What kind of rods
8) What kind of pistons
9) is the crank cast or 4340 or billet
10) type of head gaskets
11) stock pump or high vol pump
12) what rocker arms