Headers are too expensive and hard to come by sometimes especially for stage 2 heads. Keep the twin headers and keep the turbo on the passenger side for ease of downpipe mods and integration into a standard exhaust. Wont lose that much efficiency, a crossover pipe is a crossover pipe, front of the motor or back. Look at the design of every turbo charged car that didn't come with one from the factory like a GN. Your limit will become how large the frame of the turbo will be. Might have to modify the core support. I have a set of custom twin headers that I tried to sell many moons ago, but I decided to keep and use them. Alt. is mounted high and going to use a modified weaver 3 stage oil pump. I have a very old school PT80 from the old Tweaked days, made a ton of power back then ,should still do it now. BTW, who did your mods to your tunnel ram, I have one and need to get it right like yours. Thanks