Upgrade your engine with our Stage 2 cams that are ground in house. benefits include a shift up in the powerband. the specs on the cams are .417/.417 256/246 Can be run on stock valve springs, or you can upgrade to our stage 2 stock appearing springs. These are GM stamped with all the OEM markings. gain duration and lift for higher RPM without sacrificing the low end torque that ECOtecs need to get off the line!