aloha everyone!! so recent upgrades include a set of hooker comp headers and dual flowmaster 40 series exhaust! all of this on a stock 305... the truck sounds good at idle, but get on the gas a little and it sounds like a train coming through! but at the same time, it feels as though it lost some power on the low end, the truck makes a whole hell of a lot of noise, but doesnt seem like its moving the way it should. any ideas??? did i go too big on the exhaust??? thanks!!!