Are these good numbers it is a 400 small block summit bowtie block with brodix aluminum heads,full roller motor.here are some numbers
rpm @ 3499 torque 478.2 hp 318.
5200 558.1 552.5 best torque
6500 509.0 630.0 best hp
this was with a single 750 holley the engine now has a tunnel ram and dual 650 holleys.The engine was built by Ken Duttweiler known for his grand national cars he builds.How do you determine engine efficiency ?

Can you give us some details of the motor such as cam specs, compression, head size and flow #'s, etc... Thanks.

Yeah, all of the specs would be great. Very very nice numbers.

Iam working on getting all the specs that make this engine.As soon as i know i will post them.should be in a couple of days.

cooool

I would say that's pretty damn awesome!