I'm sorry but being a bit provocative here, I just don't get it, Ive tuned cars myself in the past and its a case of diminishing returns for the money you spend. If you want more bhp and more importantly torque why not buy a Mog with a bigger engine in the first place it will probably be more reliable in the long term, and probably cheaper overall?
If you want more horses & grunt - you need more cubes! It is how I'm thinking too. A lot of money can be spent on mods and it still not be right and unlikely to get your money back. A friend of mine who is big into racing from Healeys to F5000 in his spare time advised me to keep it pretty standard as he believes it's a better proposition to buy second hand rather than the unknown of being greatly modified. It's all about choices!
