415HP from 318ci IS POSSABLE!!
My 349 stroker runs 3.9 gears but a 27" tyre - I have a cam slightly smaller than the one Dulcich used.
I drive it 250 miles to a show once a year, sitting on 60 mph and I get 15 MPG using a TQ.
Re - your race story - I think the point most guys are trying to make here is that peak HP is only one part of the deal -
My problem with the article is the way Dulcich skips over the fact he had to use new pistons in the "stock" bottom end - a point I've made many times to guys down under who think this build will be less expensive than building a 360.
The good part of the article is the way he proves you can make 400HP with factory rocker gear - I reckon thats awesome.