Anyone used these headers?

I was also thinking of doing exactly that, tti's, i dont think doug's work for column autos, then again, i dont know if tti does either... but 600-750 US$ is kind of steep when my $ is .8somthing in value. plus the only reason i am looking at headers is that i want to switch the stock heads i have that came with the engine to 302 heads i have lying around, and if i do that i need to change the cam (2bbl cam, stock everything engine)to better use everything and all that stuff that goes along with the cam change etc. im still debating wether or not to get all this stuff or just take off the a/c and throw on my streetmaster 318 and the demon carb. sometimes this is a frustrating lifestyle to be involved in.