ignition assistance

Hi everyone,

I'm currently in the process of purchasing all the pieces to build my 671 blown 360. Inital plan is to run 4 psi boost on stock bottom end with a performer rpm cam. I currently have a stock 75 mopar electronic ignition with no means to re time the dist. (Currently at 35 total, from what im hearing i should limit this to 28) I'm looking for advice on what to go with. I've heard good reviews on the msd e curve, The price is a bit steep (canadian exchange rate kills) or to go with a styler that i can adust the springs to limit totalk advance. Anybody have some ideas ? Thanks