Chris! They make a lot of stuff wires heads fuel regulators and my friend Mike has bought aton of these parts from a well known e Bay emporium in the S.eastern part of our country. He bought a set of bbc heads that lasted 2 runs before they blew a hole in between cyls 3&5. He has sent most everything back and got replacements no problem ,sometimes the e bayer didnt even want the old parts back . What does that tell you. At first sight the stuff looks great but after you really start looking at it you come to find out you don,t like what you see. What about the work installing these parts. I know first hand i am the one who helps him install the stuff . Nothing worse than paying for the same real estate twice it becomes cost prohibitive fast. I have posted on this before and this subject has been beaten to death,on tc tc &tn.There are enough problems installing firstclass aftermarket parts and thats good stuff. Save a little more and buy name brand stuff remember YOU GET WHAT YOU PAY FOR. ALEX