I think if you could produce nice sets of 68-70 340 manifolds for $300 a set you could sell alot of them. Send me a PM if you get serious and I'll go for a couple sets. Finding these manifolds that aren't cracked and welded or pitted all to hell is getting harder and harder. The angle of the mating surfaces at the head and at the pipe has to be precise - not much margin for error to get a stock type pipe to fit.
