Bottom line I came across this AWD astro van for 300 bucks. The 4.3 in it is having major fuel issues, by that I mean its pouring raw fuel into the exhaust. I've been to every avenue with it from chasing the filter, pump,spider harness which has the regulator on it, intake gaskets, full tune up including O2 sensor. Still it pours fuel. The vortech 4.3 is a decent motor but I am looking at using this to tow my cars etc. I already have a full air ride suspension for the rear so it can haul anything without breaking a sweat suspension wise. It just needs the power. When I put a test run pulling my buddies trailer with 2 cars in it the rear didn't even squat however the engine was VERY weezy as you all can imagine. so turbo equals torque, and 6 cylinder equals duel economy. My GN motor would get consistent 28MPG on the highway, which is why being my motor will be sitting its rest of its life on a stand if and when I decide to buy another regal or make a hybrid. I believe my 3.8 motor is going to be the ticket requiring the least money. I have a friend who is an absolute amazing fabricator and has agreed to help me tackle this project. so with that in mind what are some suggestions of everything I will most likely have to address as in what will give me the most hickups in this project. I really appreciate everyone that gives me advice on this. THANK YOU ALL IN ADVANCE, I GREATLY APPRECIATE IT!!!