Right now im running 93 pump fuel. Also the 455 is at the tire so with the ball park 10-15 percent drivetrain loss that would be over 500 at the crank. Also the intercooler seems to be undersized for flow needs so im fabbing up a bigger one to fit the chassis without cutting more since the turbo is a .81ar borg warner s300 with a full 4in downpipe and exhaust on it so that shouldnt be a problem