HEI in Mopar ECU casing

I just used the coil from a 1990 chevy truck that had a 350 in it. along with the8 pin module from that truck. But as stated above, you can use the older style module also..

Ok yeah I'd like to do the four plug and keep it in the orange box. Rereading your experience, did you end up keeping your setup in the orange box or what did you settle with?

If I use a cylinder coil, is it no longer hei?