You got the idea!
Just remember; the calculator needs the Intake Closing Angle, calculated off tye ADVERTISED specs. Do NOT use the .050 specs!
Here is what it says right at the top of the calculator; ...............Dynamic Compression Ratio Calculator ................... (Use seat to seat or advertised specs for Intake spec for best results)
For best results at altitude, To generate a smaller Ica for to trap more mixture in the chamber; I recommend a solid lifter cam, and on a tighter LSA, like 108. Do not try and use a HFT on a 115 ,lol. The solids will let you run one size bigger cam at the ~same pressure as a HFT. As will a 108 over a 112. So by running a tight LSA, AND a solid, you can run a cam of about two sizes bigger off the after-lash advertised, than you could with a wide-LSA-hydro . If you get the VP over 140, then you don't have to advance the cam. 140VP is plenty of VP; more just spins tires earlier and easier.
A hydraulic roller, IMO IMO, is the wrong way to go , at altitude. They make power in the midrange all-rightee, but the Ica runs big very early, leaving you with a weak bottom end, that requires additional stall to overcome.. A solid roller, on the other hand, can be built to have very fast ramps. Faster than a Flat tappet even.
I must be a DA cuz I just can't find anything on the Lunati site anymore.
