Jack,
I only saw a pic of a TC block once. Looks like they drill the block to install some kind of retention mechanism for the lifters. I will ask a guy who built a roller-cammed 221 SP, to know what is exactly involved in the conversion.
XECUTE, the green Falcon has 3 2bbl carbs, probably IDA or IDF Webers. The manifolds are custom made.
Alex, my SP head came from a race car, I think it saw action at some junior TC class. But the valve specs and such are pretty much like the ones stated by the TC competition rulebook.
83fairmont, I will try to check it out for you, but it should fit AFAIK.
I took some pics of 83fairmont's ME head:
Head and manifolds:
Closeup of the combustion chambers:
And of the ports:
You can spot the differences between the ME and SP heads in the pics. The ME is designed to increase power, while reducing fuel compsumption at the same time. You can see evidence of it by looking at the heart-shaped combustion chambers and swirl-inducing intake ports. One interesting thing is that, in stock form, the ME will outperform a similar SP by 5 to 10 HP. The head also uses long 14mm sparkplugs to put the electrode closer to the valves (modification also implemented by racers on the SP head). The head comes with steel seat insert for unleaded fuel use, and the intake valves came wuth a back-cut from the factory. One interesting thing that I realized after detailed inspection of the valve seats is that, apparently Ford Argentina used a multiangle valve seat solution for the ME. I will try to get more pics of the seats if the sun decides to come up some day
Glad you enjoyed the pics

MartÃn.