Spoke earlier today with Buffalo and he just picked up 10 sets of GMC headers from the machine shop. The Nicson headers are made specifically for the GMC engine and are a direct bolt on (no grinding required). Price is $500. a set. Buffalo can be reached at 360-652-7684.
Since you obviously know how to create and post new threads,can you tell me the secret? I have been trying to start a "Want to Buy" thread in the swap meet section,and can't figure out how to do it.