Not Ranked
I ran the headers from Ron Roberts (RIP) Firefly Performance. Good kit. A friend has these now and will be using them in his SPF 427W along with Ron's sidepipes.
I designed header flanges and the 8-bolt square flanges these were laser cut by a local shop (Grand Rapids, MI).
A new set of headers was built locally. We followed the design concepts of Ron's headers and then mated to Ron's sidepipes for my FFR Challenge Car.
Jim
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