Hey guys.I have a vf series 1 L77. Currently got ramjet otr, xforce 2.5 inch cat back and tune making 256rwkw. I got that done at GM Motorsports in Melton. I'm heading back in there next Tuesday to get it cammed. Getting Super stock cam, rex headers and high flow cats. Anyone have any experience which GMM cams in particular the Super Stock? If so, how much did fuel consumption change? How does it sound inside the cab etc.. Seems pretty awesome and my car is a daily driver so decided on that cam.