I also have a 230/237 cam but 11/1 Scr (alloy heads) and 3.55s.My 367 went 93 in the 660, at 3457 pounds and 900ft elevation, Normally Aspirated,lol..
I also have problem with traction, but apparently your problem is worse,lol. My 60ft was 2.4 and change.
Supercharging will help the most, lol.
What is your track elevation?
What is your cylinder pressure?
