I have been very interested in the 4200 vortec motor that's in the Trailblazer. I like the fact that it makes a decent power right out of the box, that it's a 6 in-a-row, it's proven itself to be reliable, and it has potential for either big power, or decent MPG. Now for me, the reliability, and MPG would be the goal. I've tried googling other people's swaps to get a feel for whats involved, but it seems like this just isn't done very often, and when it is, it's for high hp, or wheeling. EFI DIY seems to be the pioneer of the swap, and the truck makes me jealous! I would like to install this in an AD truck that I have on an S-10 frame, use a colorado 5 speed, and run it with megasquirt. problems I already see are DBW, oil pan, VVT, megasquirt selection/setup and possibly the transmission. Anyone doing this right now? Or does anyone know of any good links to people that are? Any help would be great, Thanks!