My car is somewhat close to yours.
175 wheel base, Motor out 31, Car is stiff with a torsion bar, Iron head 355 SBC, Injected Alcohol, 182 first gear, 5200 converter, leave around 3,000 rpm, 4.10 rear, 14x32 M Ts, 4lbs air, Tried more didn't help, 76" wheelie bar from axel c/l, Never weighed it, At least 30# on the nose.
Its gone as quick as 8.45 1.14 60'. But not consistantly. It hits the wheelie bar and unloads the rear tires. I found if I slow it down to 8.60 1.25 60' with a pnumatic cylinder and a needle valve it,s deadly consistant. Good enough to bracket race.