Tony, I think I've swapped over to the 1275 exhaust manifold on just about all of mine, regardless of engine size. The last time I had one of the older "pinch clamp" joints fail, I swore it <u>was</u> my last time! If you have any of the 1275 flanges lying around, hang on to them. As far as I know, they're no longer available, <span style='font-size: 12pt'>but</span>, the last Falcon stainless system I bought came with a flange on it.
Go figure.
Jeff
Go figure.
Jeff