We just put these suckers in my friends GP GT, along with LS6 springs,comp cams retaniers,and rods. Now the car bogs a bit at around 5400 rpms. Whats the deal? Ataped it, and no misfire's, and the car idles fine.
A forum community dedicated to all General Motors makes and models owners and enthusiasts running the 3800 series engine. Come join the discussion about performance, modifications, classifieds, troubleshooting, builds, tunes, superchargers, maintenance, and more!