You don't need vtec. In fact, some major builders say that nonVTEC is better for FI because there are less moving parts. h:

As said above, I have a friend with a stock B18B and a T3/T04E turbo with home made piping and Hondata running 13.2 in the quarter on about 11 psi. That's about 250 whp on a stock block, stock internals B18B.

Read man.. read.