I have a 467” BBC with a 871 BDS street blower that I am working on. I pulled it out of the 69 and will be putting it in the 79 Camaro soon. While I had it out I pulled the heads to look inside. I decided that maybe I would change valves to a higher performance valve before putting it back together.
Heads: World Products Grumpy Jenkins Merlin 118cc Iron.
Valves: Look stock 2.19 and 1.88.
Pistons: JE flat top blower pistons.
Cam: Isky custom grind about .600” on a 110 LSA flat solid tappet.
Carburetor: 2 Holley custom 750 double pumper, air horns milled off.
Fuel : Holley Black, Fuel Cell with a Sump mounted in trunk, 93 octance, Aeromotive return regulator -8
Blower: BDS 871 3% Over Driven, hope 10-12 pounds boost.
Rockers Arms: Comp Magnum Roller.
Transmission: Turbo 400 / 3000/3500 converter.
Suspension: Ladder bars with coil overs on 9” with spool and aftermarket axels.
Ignition: MSD Billet and 6AL box.

The question is, should I upgrade the valves to a better valve or will the current valves work for street and maybe a couple of blasts down the strip? Any thoughts on the valves, Manley, Ferrea, other?

Thanks for the help.