I had a Moroso on my 360 a long time ago. But the drain plug was at the bottom! Not at the bottom in back or the side, the bottom/bottom.
I dropped a wheel off the edge of a return road to let a Jr. Dragster by one day and it caught and ripped the plug out.

I've run Milodon ever since. They are a little bit shallower than Moroso but make up for capacity with the wider sump. Better quality too. Only down sides are needing to notch the lip of the K-member to clear the right front corner of the sump and some headers won't fit because of the flared sump. TTI do fit. Milodon also makes a shallower 7 qt. that I believe takes care of those issues.