Ok man, I ain't trying to really bust your ass here...in all honesty I can see where you coming from but you post up talking like headers were a De-MOD. Nothing flows better than headers, bar done...I dont care if you have the best ported manifolds and 3" Downpipe setup on the planet...you are still going to see more gains from headers...and as for the changing to headers and your car dyno-ing a same Hp rating...ZZP is just bad...the people that tune there don't know a thing and that is why I lost my first motor...4 PCM's from them and it was still fugged up. I'm also not knocking the Intercooler setup...IC is great idea...but not the SSIC...for the money...you can get rockers and tune your car and go just as fast IMO. Maybe not have such a small pulley but who cares if you can tuneAnd even with a 3.2" pulley you are still going to have to shell out money for a PLOG, Ported Rear (Not Worth it), Ceramic Coated Crossover (FAIL), and a 3" Downpipe...and there you have enough money for a set of Pacesetter's. I'd buy them all over again...you just have to RTV every end. I also got bigger bolts for the front header/crossover, welded the collector and used new GM metal gaskets...not that paper bullcrap. And for the mods before IC's and headers...people were just either not modding GTP's or dropping pulley sizes and not thinking about supporting mods and blowing up motors...that is why we have such a huge community today...people got smart, started modding right (for the most part) and we have all of these awesome products at our disposal.
Hope you understand where I am coming from.