I am buying 2 mercury Cougars and I cant find a forum for them so I figured I would join here. the cars come with one engine a 289 and I want to put something in there to make it a beast, I was thinking a boss 302 engine but I am not sure what number of horse power is just enough for a car to take to shows and to the quarter mile strip just for fun, I also plan on building this engine. I am thinking small block because I am not sure about room in the engine compartment. So what do you guys think? boss 302, boss 351? I dont know what other options are out there, and I dont know much on building engines but I plan on reading a few books and just buying parts and taking my time.