Go on the interwebz, find the cams specs for a TFS1.
Then the flow numbers for TFS TW heads. They were in that cylinder head shootout in the magazines a while back.
Then enter 4.000 x 3.000 for the block.
Then put sequential fuel injection as the induction, with a reasonable CFM.
Then put 9.0:1 CR.
Then add a turbo at 10 psi.
Let me know what the results are. I can probably try to find the actual dyno results somewhere, but it would be in real-world rear-wheel numbers... not computer generated.
Paul.
*edit* Here it is.