ok well i think you should know because it is all made by me it's a 3.1 block with camaro cast iron heads ported and polished, The cross fire intake, custom headers and turbo flange. the turbo is a turbonetics m12 a/r 62, running 16.5 psi the pistons are ross forged racing pistons with Crower Small block rods, the cam is crower good to 7800 rpm. so ya it's a fun car