Ok I just came into posession of a Chevy 402. I usded to to have a 396 version of this engine and it was fast. dual tunnel ram and some tweaks in a 64 chevelle and it was 10.2 138mph at the strip. I now have a 402 and well would like to build it for a Chevy Blazer 4x4 running 49" tires with 6.72 rockwells. The builder and I would like 600 reliable horse power on 100 octane fuel . I have been doing some reading and found this engine makes a lot of horse power but not torque. Any ideas on what I should do so for around 2500.00?