There are a lot of legal ways to clean a motor these days. EPA regulations don't allow you to let oily water hit the ground. As far as increasing HP, you would have to make some major mods that could detract from it's value. Changing the intake manifold and carb to a 4BBL, installing aftermarket headers or advancing the timing a little but most of that is going to require premium leaded gas which is not available.
Tuesday, April 19th, 2011 AT 4:22 PM