Yes first time ever. I broke my cherry. Whoever said it's easy is a Fuggin A$$h0le! #8 is a mutha. I bought an index rachet and a 5/8 sparkplug socket integrated with a 3/8 universal swivel. Needless to say the index rachet failed to perform and it went back to Home Depot. All I needed for #8 was the new swivel spark plug socket and a straight craftsman rachet. Breakin it loose was the bitch of it all. Every thing else was fairly straight forward according to the "How to" documents that I printed out. My SS has a little over 70k on it and was feeling sluggish and a bit off on idle. I put in NGK TR55 gapped to .050 Part # 3951 for those who use Oreilys Auto Parts. I also replaced the wires to MSD and a new PVC valve. She fired right up. I could not believe the difference! Throttle response is awesome. Would I do it again? Yes, it's EASY!! HAAAAAAA:lol: