Yawn Dart??? 1968 Hurst hemi proTouring clone

I was wondering about the pumps, I'm floorboarding it so I am using all the pump before the hit. I had read it wouldnt matter saint the cart was wide open. I'm not sure what stock jetting is, I think like 71/80 was what came in the carb. Yes I do think more initial timing will help. Wouldnt more initial power help keep the suspension loaded until i shifted to 2nd? I'll give the link a read also. Thanks for the info. I do have adjustable shocks on all four corners I'll take a look and report back with how they are set.
I'm not a trans brake driver so maybe some else can comment. I think the rear shocks may be to short. Have someone video the rear suspension and put a white stripe on the rear tire so you can really see what is happening.
74/80 should be stock jetting
Brawler BR-67213 750 CFM Brawler Street Carburetor Mechanical Secondary