Need A Little help Please

Garrett Ellison said
Me either! On top of that, Lunati recommends “4.88 gearing or better” on their website. They also state 4500-5000 rpm stall & 11:1 or better, but agree all the way around those numbers are too low as well.

I'd say if that cam was in a well built 340 or 360 that much gear, or more would be needed. IMO, with a 4" crank not so much.