This scenario is kicking my @ss. I can’t get the power up over ~31 without totally trashing the other requirements; even then, the power is only up a few points. I tried to completely ignore every requirement except the power requirement and I *still *couldn’t get there. I’ve got platinum on everything else, but I can’t even manage to get a ranking score on this one. What’s the trick to this one?
The trick? Pushrods… as that enables you to take a large block 
they are very compact!
I got a platinum on that one; you will need fuel injection. you won’t even get silver with carburetors. Also you will need a large capacity engine to offset the low rpm and just as killrob indicated, pushrods to keep the size in check. you have to adjust many parameters including the manufacture year.