The pulleys will be for the N/A engine first and the srt-6 second. I currently have a N/a car at my disposal, so it is easier to fab up parts. Once everything starts taking off I will be using an srt-6 in the area for fitment and prototype parts.

But again about your intake, which ever design you go with you need to locate the filter past the point that the stock tubes ingested air, or it won't add additional HP. Look at Needswings intake. If they thought in the engine compartment would suffice, why go through the extra trouble of relocating the horns and routing the filter into the grille area? It'e because the change in temperature between those two points is significantly different.

I switched from a dual filter set up similar to yours to the one I have now and picked up 3/10's in the quarter with a 2 mph increase in trap speed. Even the stock set up netted better results then the dual filter set up.