17x8s on 68 Firebird....Whose running them?

[Rommel]

I have a 68 Firebird with 1 in. drop springs in the front, factory stock rear, with 4 wheel discs (71 Lemans fronts, 81 T/A rears). I'm looking to run 17x8s. I've done a search and found a ton of info, but with every post my head hurts more and more...too much info. My question is with this set up, B/S do I need to run. I'm seeing 4.5 to 5.0 all the way around. Is this too much, too little, etc. I'd like to get the same rim all the way around if possible. Any input is greatly appreciated. Thanks.