RPM B-3 (LS7) CamshaftOne of the most important components in any engine is the camshaft and it is by far the best bang for the buck upgrades in your car. If you are looking for the best out of the box power adder for your C6 Z06 or 5th gen Z28 LS7, The RPM B 3 Camshaft will do the trick. This cam makes around 550whp Pair it with our Heads and intake package it makes 600 650 whp and has been 9. 8 @ 142mph 1 4 mile with a full weight C6 Z06 and 9. 6 @ 144mph through an auto.