It may be cheaper and easier to do it with ICA, watch the Dcr, that's more important that Scr.
ICA of 56* and 900ft
Static compression ratio of 9.3:1.
Effective stroke is 2.74 inches.
Your dynamic compression ratio is 7.86:1 .
Your dynamic cranking pressure is 155.03 PSI.
V/P (Volume to Pressure Index) is 122
ICA of 60* and 900ft
Static compression ratio of 9.5:1.
Effective stroke is 2.66 inches.
Your dynamic compression ratio is 7.82:1 .
Your dynamic cranking pressure is 153.97 PSI.
V/P (Volume to Pressure Index) is 118
This is a 4* difference in ICA, so just by selecting a fast-ramp cam you can end up at the same pressure/Dcr
but look at the VPs!
The shorter ICA makes 4 points more VP; winner!
But if you are starting from 8.5, and going to 9.5; then no contest, shave them,