Do you wonder why your 460 has lost power over the years?  Well after 30 years your springs are dead and soft.  They should be 100 lbs at the seat, and over 250 at the nose of the cam.  Most we measure are lucky to have 45 lbs at the seat and only 130 over the nose.  Often they are even worse off than this.  This means you are floating valves and losing compression, power, and efficiency.  We have measured hundreds of combinations and partnered with Howards Cams to bring you a premium set-up that will increase the available lift to more than any other combination can offer.  This will allow you to run our stage 2, stage 3, and stage 3 + cams without having to have the guides cut down.  You will want to still measure the available room as a few sets of the early E7 heads had a little less.

Stock injectors were 24’s. It is a mark of pride to say we need to jump up to 30’s. If you combine using our throttle body and modified intake manifold, the horsepower and torque increase is huge. Luckily, the speed density 460 computer will self tune and run these flawlessly.
$530 free shipping and handling when purchased with our throttle body or intake manifold.