I would like to uses a stock coil for my electronic ignition on my 1970 340 motor will it work

If you want it to look stock you can use an msd blaster or something similar and paint it. I didnt like the red coil, stuck out like a sore thumb.

Not sure I would want to paint it. The Flamethower coil used with my ignition looks pretty stock. Search around and understand what is recommended for the ignition you are using, be it acell or what ever. First know what you have then research.