A friend of mine has a '74 Super Duty Trans Am with the Dr. Gas 3" exhaust system and X-pipe, and he loves it. He did quite a bit of research before installing it and I'm sure if there was something as negative as a loss of 30 lb-ft he would've found out and said something. I'll pass along your message to him; he might be able to help you out.
Is the loss of 30 lb-ft related to the reduced backpressure and increased cylinder scavenging? Brad O. > I've got a 70 SS, 396, 4 speed with stock exhaust manifolds. I want to put > an X pipe on it but have been advised that it will knock 30 pounds of torque > out of the engine. Does anyone know anything about this??? > > Craig ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]

