I'm wanting to put a new exhaust system on my 70 383 Roadrunner.Stock exhaust manifolds on right now and I'm keeping it that way but what's out there exhaust-wise and what company is good to order from?I'm sure you guys out there have more experience in this area than me.Looking for a 2 1/2 system front to back...further,would these systems have an H-pipe set-up?...thanks

Dave