Bang for the buck.

What do you think is the best bang for the buck using a Mopar for powertrain? I'm not asking about N/A only combo's. Just what have you, or THINK you can build to make respectable power for a good service life on the 'cheap' Let's say anything ABOVE 650HP...GO
How did some people OVERLOOK the initial question? In addition, I gave an example of a build I DID that fits this criteria. The car that inspired this general question was Motorcitymagnum. I never said he was making 650HP but, if I knew more about it, I could hazard a guess. In another thread PittsburgRacer mentioned his SBM and what it cost, John is a talented and accomplished man. Instead of mucking up that other thread, I created another, out of courtesy. I'm sorry if I wasn't clear as to specific names but, some people are just spreading their cynicism; e.g.-Professor Fate. (Good riddance!) This was just supposed to be a thread for fun, in which I'm still open to participate. I guess this is all part of learning some new people and them learning me.