I'm curious: how much spark lead do these RB blower motors use? I've heard numbers as low as 15 degrees for LS. Yellow Bullet probably has some traffic on this.
Not sure on boost but the conservative recommendation for nitrous is pull 2° for every 50 hp shot. Personally I pull 6° for 30° total on a 200 shot. The LS engines use a LOT less timing due to the more efficient combustion chambers.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.