[sambo]

Peter, I know on the LS2/L98/LS3 the throttle body and MAF are both 90mm outside diameter. So a single piece of constant diam pipe should do the trick for us.

Regarding Gregg's photo, I would be inclined to draw air from the bottom of the engine bay rather than at the top where stagnant warm air will be collecting (no offense Gregg, just my opinion!). Perhaps a 90 degree elbow pointing down at the point where Gregg's air filter is located? I think Ben (Kenmer kit) has done this.

Also the hood scoop might draw air into the engine bay but it's well behind the pod filter and there's no turkey pan / carby creating a vaccum and drawing air through the scoop like on the original cars, so the actual flow is questionable.