Hey, guys I have a sbc409 specs are comp soild cam don't remember the duration. But the intake lift is 540 the ex 520. Heads aluminum 190 runner 2.02 1.6 valves and 64cc chambers. 6 inch rods hyper flattops.. 11.5:1 compression. Quick fuel 850 carb nx nitrous system 100 to 250 shot plate system. 410 gear in a s10 truck and probably 28"tire. How would a victor jr. Work compared to a rpm airgap or reg rpm intake? motor revs to 7000 rpm. 2400 to 6800 is the power range of cam. O and its a manual tranny thanks guys

I think it will like the vic jr over the dual plane stuff even tho the heads are small for the cubes. Cam may be 2800-6800 but the heads will be the restriction and likely cap it off below 6500, even with alot of duration.

Ya next year 210. Runners will take the place of the current ones. O and the duration is 280 290. Not sure what spark plug to run with the juice but ill figure it. Thanks

Check out Speier racing heads 210cc profiler's. Theres a 406 on there that made 580hp with a mild solid flat tappet cam like yours.