Wheels for the back of an A Body barracuda....?

Hello
I need some help here, just about to buy new rims for next yr and found some nice rims for sale at jegs.
I wanted to know can I fit 15 x 8 wheels with 4.5 beck space on the car ?
All stock in the rear when it comes to leafs and frame... Nothing moved in etc.
In going to go with the 15 x 4 front (cant recall their backspace for the front, but I'm thinking that won't be a problem) outs just the back rims I'm worried about.
While I'm asking, anyone know what the front should be ?

Thanks.
MAPS
Here's my combo...you might find as I did that 15x4 front rims are, in my opinion, a bit too skinny and limits your tire choices. I found 15x6's perfect and the 215's fill out the wheel well nicely...but ultimately it's up to you and your taste.
Post your wheel and tire combos.