If you look on
www.FullThrottleV6.com there are a few guys who have pushed the limits of the 60 degree motors pretty nicely. I know that there are FWD heads that are an improvement over the pieces the F-bodies got. Add in a little bit of cam, roller rockers, Port/clean up the intake castings, and swap on a little bigger TB. Nothing realy fancy since it is all stuff that will be apart for a rebuild anyway, but it would be a major improvement to the power output.