If you have the $$$ there is NO REASON to not pro-charge.... Many will tell you that bolt ons will only get you so far.. Many of those people-myself included-have put most all of the bolt on's on, and STILL want more.. Looking back, I would have been better off, and happier, and would have MORE POWER if I had just turbo'ed my all stock engine.. Probably more reliable as well.. Probably less $$ too.. My vote is supercharge, or turbo.. Then, if that is not enough for you, you can still cam, heads, LT's, ORY, and all the other stuff.. If you think you need it..

 

That question is too vague. Would you be better off with a supercharger? Obviously only you can decide that. Just cam might ad around 50 hp, and a blower with a basic pulley might ad 150 or so hp. As far as cost it depends on what supercharger you buy, new or used, other accessories, etc....

 

 

You could also do nitrous and a cam, and be just as fast, at half the price. Just throwing out another option. Regardless of which way you go, you will be limited by the stock internals as well

 

Anywhere from 350 whp with a tiny cam to 400+ whp with a big cam.
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This sticky in the dyno section is a list of cam only results that might be interesting to read.

https://ls1tech.com/forums/dynamomet...no-thread.html

Forced Induction Procharger, Magnacharger, TorqueStorm or turbo(s) will be more power and fun if you have the budget.

450 whp with heads & cam is very doable a reasonably budget friendly. The funds would go a long way on a supercharger that can make more power.