Is this a street car, or race car?
122 mph is good for 10.80s to 10.90s, according to my moroso speed calculator...you are getting close.
4.88s would help. What tire are you running?, Car?
Trim some weight off of it. Fiberglass hood if you dont already have one.
A good double pump carb, I think the dominator would be too big. Good gas and bump the timing up 2 degrees at a time and watch the plugs.
It is very difficult to give tuning information over the internet without seeing the car....
good luck