Mazda factory did a test many many years ago on CDI v's inductive on NA at ~300bhp level, very good test showing even kV increased on inductive to match CDI and it could not match the power, it was less 12bhp from memory, I'll try to scan the report and the graphs and tests.
Mazda only recommend and have used CDI on all factory race NA's cars since about 1978, there is good reason for this.
For CDI to work as good as inductive at idle rpm it needs
multi strike of the right frequency and number (also right amount of current and voltage, not all systems are the same in this regard if you measure them). FYI Even modern OEM inductive systems are multi striking at rpm's below 1500rpm, we have one in our workshop which I train my students on
CDI done badly will give you a bad experience, CDI done properly and you will never ever use inductive again, especially on a rotary engine
