hi my dad have a NOVA with 390 gears 3000 stall and a 350 bored 60 over with 190 aluminum heads 2.02 valves he just got cast flat tops 4 reliefs piston in it.And have a holley strip dominater intake.We would like to know what would be a good cam for the motor. AND HE GOING TO CHANGE THE GEARS TO 456. THANKS