I'm running a stock bottom end, ebay header and a crappy exhaust, but Scotty still got 144.9 whp out of my Ls with Crower 403's, port/polish, and Blox 65mm tb.
Not a whole lot and I haven't really ran any other cars yet, but it's pretty fun, already.

I'll add a light weight flywheel and better clutch when I wear the stock one out, and can't wait to see what it puts down, once l up the compression and get a better exhaust/header combo, but now the wife is jealouse and wants an Ls in her Del sol, so mine is on hold til hers catches up a little. lol