Hello all,

I've found this topic very interesting and extremely useful! Thanks for all the information, based on these I've made myself a ported head for my mfi XR3i.

Using a Dremel tool, I made the inlets match with the head perfectly. At first, I was afraid that this will reduce swirling and by this, fuel atomisation. But then I've noticed that the port shape should be enough for good atomisation and mixture, because it generates a good swirl.









I did some machining behind the throttle body, too.



I'll make more pictures soon...

Anyway, here is my Escort:





Rob, have you finished the ported head? How is the RST going? I see this thread ended in 2010 without built in results,I hope everything is ok.

Cheers,

Balazs