Advice on moving forward

The 3rd member is a 741 case and yeah it isn't the most ideal case for a ring and pinion. I just ordered an edelbrock carb tuning kit and will give that a go when I make it back to a track and can actually test the changes. I do have a spring and bushing kit for my MSD distributor and will bring that with me too when I can test it out. I hear what you are all saying about not making any changes but the range of my cam is 2300-6500 so maybe my torque converter just isn't putting me where I need to be? Couldn't find any old slips but I do remember 60 ft times were in the 2.10-2.18 range. I recently changed the distributor springs to the lightest ones and at WOT it pinged pretty bad so I changed it back to stock for now.

Skep, I wish my car ran 7's in the 8th lol.