750HP,
Your showing your age, Had a pocket calculator in the late 70's early 80's did you. BOOBLESS in deed!
How about 710 77345.
Quite partial to the old Torana. I had a GTR XU-1 replica years ago, tripples, bathurst cam and lots of other goodies. Used to hit 120MPH before throwing it into the right hand sweeper at the end of the main straight at Calder.
Here is a site with some interesting history on the XU-1
http://holden.itgo.com/torana/gtrxu1.html
Cheers