Want to put a roots type supercharger on looking for any advice or facts.

I have some specific questions on the characteristics of roots type super chargers.
Specifically the Wiend 142 and 177 for SBCs.

Here is a breif summary of what I want to put it on.
I have a 95 block with the EAGLE Forged 383 kit 6" H beam rods SRP forged flat top pistons for the 23 degree valves. The block is studed and internally balance all the good stuff nothing left out it is a Nitrouse motor more or less. I have run a 350 shot on it and it holds good. I have a .542/.563 adv. .284/.292 Hyd. Roller
Crane pulls to 5600 rpm. Has Dart Pro 1 aluminum 215 heads with CNC 72cc chambers steel .015 headgaskets. It is right at 10 to 1.
I am tired of all the kids wanting to run me on motor only so I want to put the supercharger on because they never seem to complain about chargers or turbos just bottle and I figure if I can get close to 35-55% more power from the motor with the charger than on motor alone it would be enough. Currently the motor puts out 365 hp at 5600rpm and 480 ft lbs torque at 2500 to the gtound on a chassy dyno in Dallas. the 89 Firbird
runs 7.47@92 1/8 on motor and 6.23@112 on a 250 shot. Tires won't hold the 350 shot out of the whole.
the car weighs 2990 has subframes built 700R4 2800 stall 3" steel drive shaft .082 walls, currie 9" 4.10 locker
35 spline axels. So it has the good parts. Now the main questions.

1. Which Charger to run? IE which will give me better results for my stroker. I think the 177CID.
2. Will one or the other cause detonation in my motor even with cooler plugs and timing pulled out with 93 and vp racing additive?
3. How much timing will have to be pulled out to run the 10psi for both chargers on about 100 octane.
4. What kind of horsepower and torque gain can realistically be expected to the wheels from this type of setup.
5. I want to change for several reasons. Cool looks, Constant hp/tq gains even if not as much as N2O.
6. Also thinking of running the NOS topshot at a 50 or 75 setting to cool the air intake and boost power
but the main answers I need are is it worth the change?
If I can only get 75 or under hp and torque to the ground maybe I need to stick with N2O but if it would say give me 75 and up hp and say 100 torque then the work would be worth it and fun and maybe then I could test the gains on NOS as a cooler.
I have never seen anything done on the small roots kind of power adders that don't have inter/after cooler options and can't seem to get technitions to tell me enough about them and I am not spending 1500-2100 for one for only a 25% gross gain.