i found a ad on craigslist for a ej20 twin turbo motor that has everything and its disassembled but its in good shape he claims i was wondering if theirs any major differences between it and a ej22 na besides heads and turbos of course, i am in the process of swapping ej22 in my rx but ej20tt sounds nice also

The twin turbo motor WILL NOT clear the LHD steering column.

is it just the turbos?, perhaps i could single turbo it?

You could but you are better off just buying a WRX engine and saving yourself some fab work.

ya i may do that in the long run

Unless you're prepared to do the valve adjustment with $$$ in mind (I've seen the one on CL you're talking about), you might as well buy one thats still assembled.