What power are you hoping to achieve?
You will get 100+HP on a 1348(1.4) with Marks' remap if you install a remote MAF,
78mm bored out throttle body, 4,2,1 exhaust manifold, and a "manifold back" free flow exhaust system.
In performance terms, my 1.4 setup as above "blows away" a new Mini Cooper...