[jhv48]

Full throttle in Reno will build you a set of sidepipes that will wake up your engine. They can either redo yours or will sell you a set exchange. Put a small mirror into the end of your sidepipes and take a look at how small the muffler really is. My inside diameter was around 1 3/4 inch and my 427 sounded like a sewing machine. Had full throttle make me a set with 3" diameter muffler and now the engine sounds and feels like a top fuel dragster.

Make sure you have the correct headers for your engine. SPF has two different sets for 302/351 blocks. The larger port size is the one that should have been installed from the dealer.

Easy fix and one you will never regret.