Here's two engine with very different cams which I basically drive both.
To show what a cam can do to power and drivablity.
View attachment 1715545901
The Base Hp/Tq is a 300 hp crate engine basically stock 5.9l with 4bbbl and headers, cam is like 200 @ .050" & .400' lift.
View attachment 1715545902
This is a 380hp crate basically the 300 hp engine with a single plane and a 230 @ .050" & .500" lift.
I got a 5.9l jeep basically the 300 hp crate and a 68 Valiant with the 380 hp crate with 2.96 gears with 26.5" tires a 2800 stall, the jeep has similar overall gear ratio cause of the 31" tires. The Valiant is pretty soft under 2000-2500 rpm have to drive in 2nd in town 40 mph or slower or it lugs. The jeep pulls a lot harder under 3000 rpms.
If you look at 3000 rpm they both make the same power but the 380 hp engine must drop off under way more than the 300 hp engine, between 3500-4000 the 380 hp engine is making stock 340, hp numbers. Above that the 380 hp crate engine power really pulls away from the 300 hp engine.
A 215 ish cam with a .500 probably will lose some top end hp but keep most of the 300 hp engines bottom end, Thats the route I'm picking for my car. plus going with rpm air gap intake instead of the single plane.
* The Modded Hp/Tq numbers is the 300 hp short block with Eddy heads and a 275 comp cam hydraulic roller.
