New 440 Build - Ignition Question

In our 12-1 500 we use a 6-al with an add on two step, blaster 2 coil and a msd pro billet dizzy and have had no probs running 9.59-high9.6s without any ignition probs. alot of ppl say we dont have enough ignition but we havent had any issues yet. We are gonna upgrade to a diff box and coil because we r gonna run a big shot on this engine next yr after we get out new solid roller as we r still running a solid flat tappet cam lol.
Jr.