VS is a small cam 90s would be more than enough. If it was an XP or S1x then I would say sure go with the 105s.
The usually.
Headers, intake, 90lb springs, new stock timing chain/dampener. Left the 3.8 on for awhile and eventually threw a 3.6 on.. Oh and in still running a tune for a basic 3.6 set up tuned for a stock cam.. But the vs is rather small so it's fine.. I'll have it retuned for the vs specially soon enough
Edit: oh and my heads were milled a bit and slightly port and polished
Agree with 150s being overkill but go with 105s not 90s. New stock chain and tensioner and new valve seals modded retainers or even better titanium modded. You might not need it but 42.5 injectors would be wise. Also ide throw on some headers and an intake and a 3.25 or 3.4 with 104 al coppers.