brian - you might want to consider splitting the existing ehaust manifold to create your duel exhaust unless you are in to being a "purest". they sound about the same and most, notice i did say most, people cannot tell a big difference in perfomance on a daily driver - back and forth to work etc. with good welding skills you can do your own or kansas customs appears to be doing a real good job in this area. i have been told that the offy intake will bolt up to the original with less "grinding" and you do not have to come up with an additional heat source for the dual carb system. split manifolds are cheaper than fentons but then again it all comes down to what you want to do with your truck and how you are going to use it.
