Oz, good luck with picking a cam combo. IMO, Alan Futrul has the best stuff out there and really knows LS1's. I used to have one of his cams in my WS6. He has some of the fastest LS!'s cars in the country and its for a reason. Call him up and tell him what you want, your goals, etc and Im sure he can help you out. he is not the cheapest and is def not the most expensive.