Wearing a lot of HandH internals and go fast externals, this is mine 8BA. 8.5:1, 8 pounds boost, Ross pistons, .125 over, CnC mains, chevy valves, Navarro pruned 471, Navarro blower heads and intake, custom ground cam, merc crank...giddy up! And this is where she resides. It really twists the slicks! I wasn't sure how streetable it would be but I am extremely happy with the performance...fuel consumption is another story. Let's just say I am putting a larger gas tank in it this winter.