Messy as anticipated, but still good suggestions and info! It's simply what I'd refer to as premium mainstream, vs Luxury/exotic. Everyone WANTS a Ferrari....what everyone BUYS is a Challenger/Camaro/Mustang. Novelty on the Ferrari starts to wear off when the they guy that unknowingly bought it starts to get into the $3000 oil changes, the insurance cost, the fact he can't get it over his driveway lip in the street. Ya'll are the wise of the wise, and the experienced of the experienced. If i was designing a Race engine, all the shaft rocker and W2 comments would be valid, but i'm simply not. Just need people to remember, our goal is to sell a bunch of great engines, not a few, 20,000 exotic race engines. You guys know W2's take different headers, Most mainstream customers do not. We can't have a guy that inherited his dads duster, buy our engine, then call back furious because his only out for headers is to have a set made for $2000. And it also makes 6 inches of vacuum, so now his brakes don't work, and it's 5 inches taller, so he has to cut a hole in the hood. Thanks to those participating!