What upgrades are available out there for the MC engine?

[Gerard]

Get hold of Javad Shadzi over at http://www.80tq.com and 
http://www.034efi.com. I am currently looking at some of his products 
for a 20vt build. He does 10vt as well, including headers, etc. Javad 
ran a damn 10vt in his 80 for quite some time.

I am currently gathering the cash for some of the 034efi items, not 
because they're expensive (they're damn reasonable), but 'cos I live in 
a country which runs 6:1 exchange rate to the Dollar. :P