I am thinking about taking on that TwoTone on eBay at the moment as a project to see if more power could have been got out of the engine without adding a turbo and keeping the car as original as possible, call it a hypothetical 'what might have been' if you would.
The criteria I am setting myself is that the bhp of the car must be preferably around 130bhp, or at the minimum, 120, the same as a turbo, but N/A of course, and, as I am not really a fan of 'modded' cars, the car must be either modified with period correct parts, or kept as close to factory condition, or made to look official.
Is this possible? how easy is it to get a catalysed 480TT to turbo levels of power or above, but not to ludicrous, what would I need to do?
or am I delusional

Many thanks
Ben H