I just did the exhaust on my 84 4x4 with 2.25, and I'm sure it's got a little more power. I thought at first I was just trying to tell myself it's better, but it really is. And it definitely sounds better. K&N filter and maybe a header coming soon. Hopefully that will be better again.

 

i'd try bigger exhaust, but i don't want to lose any of my precious torque...