Wyrmrider said

Jones HR

Cam# Chr360M, HR73353-110
233/233 @.050"
.353"/.353" Lobe Lift .529 w/ 1.5 .564 w/ 1.6 .600 w 1.7 (magnum)
110 LSA
going to cam list on website lobe HR73353
292 @.006 151@200
it's the 151@200 that gives the power- the seat timing gives the vacuum etc
from Jones website- here's the theory

e. Using our proprietary Inverse Radius technology, these EHR Series profiles offer the most area over the nose with less overlap, resulting in more horsepower and torque without sacrificing idle-smoothness and reliability


(Edit for fumblefinger retypos)
Inverse Radius technology produce a slow initial opening of the valve, then increases the lift rate as needed per engine specifications {intake, rod length/ratio- and exhaust pull etc}

Inverse radius give you more area under the curve at the same lift and duration than a normal flat flanked roller profile

The result is less air being lost to the overlap process, and more air being retained in the cylinder

This makes the engine more efficient, increasing both torque and Horsepower



short duration allows him to squeeze the LCA down

His 233 inverse radius HR is going to be shorter on the seat than the Bullet

Did you emphasize usage and EFI in your questioner or did you do it by phone
cam looks big to me

So it comes down to tradeoffs

Solid FT or inverse radius HR or inverse radius solid roller



flat flank roller is going to be 10 degrees bigger seat to seat which hurts getting the Intake closed and other valve events and hurts overlap for this EFI build

Click to expand...