How should my duster handle

It's driver preference. Steering feel or even the ratio itself doesn't make the car go faster.

I remember testing Late Models at a 1/2 paved banked track (Irwindale). Trying different things. On the same day we swapped steering gear box ratios and steering wheel diameters. All else the same. One driver had small diameter wheel and 8:1 box. The other a 16:1 and larger box. Same model steering wheels and both boxes by Lee Mfg. Both drivers had been racing 20+ years and both had track championships.

The guy I helped ran the 16:1 and larger steering wheel. He tried the quicker box / smaller wheel combo. Went slower. Didn't like it. We even tried changing the setup some. Still slower.

Mitch Lelito that has national Autocross championships in his 70 Challenger doesn't mind the overboosted power steering box. He even drills out the Saginaw pump's rear oriface larger so the assist can keep up. BTW the Federal box can not keep up with the quick steering movements of an autocross. Mitch found that out 40+ years ago when he first starting racing his car.