G-day,
If it's a standard 465 (list number 1848) then it's factory setup will be:
Primary Jets 57, Secondary Jets ???(it's not in my carb list) Power Valve 85, Discharge Nozzle(shooter) 25 and Green Secondary Vac spring.
Sorry if you already knew all this.
Now I'm only going on my experience with my Slant which is similar in build to yours but mine is .100 over size with not as much comp and cam and I don't have a long runner intake I have a Cain intake.
So here we go, firstly you should see how it drives out the box ie. with the carb at factory settings. You'll soon figure out what you need to change. Here's a website that has helped me countless times. http://www.bob2000.com/carb.htm
It's hard to tune a carb without being there but just as a stab in the dark I'd say with your Hurricane intake you may need to up the shooter size because of the long runners, you may need to up the jet size just because higher performance Slants like fuel.
With your cam I'd think you have pretty low vacuum at idle so the 85 Power Valve might be opening up at idle(that's bad) hook a vac gauge up and find out what your vac is at idle to help work out what PV you need. The secondary spring choice will be a matter of drive and try, but get your primary barrel tuning sorted first. As I said this is just a guess at what you might need to do, every engine is different, and even the same engine can be different from one day to the next.
FWIW with the 390 Holley on my engine I've gone from 51 jets(std) to 55, 65 PV to 45, 25 shooter to 31 and Plain sec spring to Yellow.
Good luck.
P.S. if you're in Perth I could help you out.