I am in need of new exhaust manifolds on my '66 Chevelle 283, pretty much all stock. I'm currently running long tube headers with Flowmasters. I'd like to find a set of exhaust manifolds instead of headers....but not sure where to find them, or how my exhaust will sound. Right now, I have a mild rumble from what you could expect from a 283 with headers and Flowmasters and would like to retain that sound or a little more aggressive would be fine too. Any suggestions on where to find the exhaust manifolds would be greatly appreciated. Thanks.