Quote Originally Posted by flanker1970
I have a big block chevy with headers and small cam. I am considering a flowmaster header back system. Do flowmasters flow well? I'm looking for a somewhat quiet idle but a nice sound at higher rpm. thanks.
Oh, by the way. I ran a set of Super Turbo mufflers on my 69 el camino and the mufflers did exactly how you want it. Not sure of the brand, they are on my friends truck now. Google them. They were quiet cruising, and when you punched it, they had a deep throaty sound. When I switched to my Warlocks I noticed a huge loss in power unless they were uncapped. The super turbos had about the same power but more throttle response than the uncapped Warlock(straight open pipe). Probably due to better backpressure.