Ok, i just bought a car a little while ago and the previous owner stated that it would float the valves around 5500 and yes i felt it also, but some people want to disagree with me and say that im maxing the fuel system out. Im runnin a track heat intake, b cam, and some 200cc roush. as of right now the whole fuel system is stock. i know that it needs to be upgraded and soon will but they think thats why my car just instantly loses all power around that rpm. what does anyone else think