I run that Hughes cam along with the KB107's and Hughes stage 1 heads in a 3000 lb Duster with 4.30 gears and a 29.5 X 10.5 M/T slick and run consistant 11.40's with an LD340 intake and Chuck Nuytenn preped 750 Holley.
Ran 11.70's with stock 1.88 valve 587 heads other than being cut to 60 cc's with no porting. Tried 2.02 915's cut to the same cc's with no porting and ran the same just like many machinists told me would happen. Never see over 6000 RPM.