Some setup advice required.

Hi guys,
Well I'm just about ready to start spending some more $$ on my barracuda.
My aim is to get a consistent mid 10's Street and strip car, but I want to keep it period looking, with the exception of shocks and tyres.
A couple of my mates have just completed drag challenge down here is Australia and I think I'd like to have a crack at it next year.
Also I absolutely smoked a new mustang at the lights last night, by at least 4 car lengths. :) he wasn't a happy camper.
I did get a little loose shifting hard from 2Nd to 3rd, so it's time to get it sorted.
My car is a factory 67 barracuda formula S big block 4 speed car.
I pulled all the numbers matching/date coded stuff out and I'm running a fresh build 440 with some goodies which is approx 550Hp, hooker fenderwell headers, hemi 18 spline box, Ram clutch, Hurst super shifter with reverse lockout, Dana S60 with 4.30 gears.
I'm running 275/60r15 Street tyres on rear and 165r15 on front. I have about 1/2 inch clearance between tyre and leaf spring currently.
I'm still using the factory leaf springs and torsion Bars.
My idea, and let me know if I'm on the right track is the following.
1. 6 cylinder torsion bars ( which ones?)
2. 002, 003 SS springs with longer shocks
3. Maybe a spring relocation kit to the rail?
4. Pinion snubber -
* suggestions on pinion angle for this application.
5. Tyre choice. I love the idea of leaf spring radial class. So maybe a nitto drag radial??
6. Weight reduction. Put a hemi hood or similar on it. That factory one weighs **** loads.
7. Shocks. Maybe Viking double adjustables?

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