It is a certainty! Mike and co have done there research, and, if anything, there expectations are coservative!
As an example:-
Even stock 1-bbl 3.3's Holdens with 260 degree cams, a good exhast and 1.63/1.48" valves in Aussie do 165 hp and low 16 second quarter miles.
An Aussie 3.3 Holden with iron Yella Terra head and 2-bbl 500 carb, headers and a good 280 cam gives over 200 hp straight out of the box, reving to 5500 rpm.
245 hp is possible with about a 312 degree cam and a 600 cfm carb and high stall auto, reving to 6500 or more.
295 hp is possible with the same HX grinng 312 degree cam and DellOrto DHLAs or Weber DCOE's. 8000 grand is reportedly possible, but 7000 rpm is dead reliable on these engines, with power at about 6800 rpm. Some have suggested you'd get better power with less cam, so theres heaps of potential there.
In a 2300 pound Torana, the 200 hp one does low 14's.
The 245 hp one does 13's,
the 295 hp does high 12's.
On a gutted out Fox 2-dr or 65 Stang, there is a similar amount there.