[black69]

Thanks for responding Stephano. I focused on the term used in the description of your 700HP package, i.e. <span style="font-style: italic">It transforms your ZL-1 to true Super Car status and performance without opening up the engine.</span> I thought I made it clear in my post, I only referred to Nickey as not touching the heads or block. If that insinuates only a bolt on mentality, those are your words, not mine. I don't know what else to say there.

So to Charlie's point, I should have asked you how you get the 700HP without touching the heads and block? I cant put the tooth paste back in the tube at this point, so I am asking now. Is there a basic answer? I see same parts (like pulley ratio), and polishing of similar components, etc, the other guys still do. I can understand there could be some secrets involved here also, that maybe cant be disclosed. Is possible the heads on the stock ZL-1 are good enough to not really need modification to net any real meaningful HP gains compared to other modifications?