Propeller/Engine/Ignition combination

[Lucio I-NLCM]

Hi folk;
Is there someone of you that has this engine/prop/ignition combination on '7 like mine?

Engine: IO-360 A1A 200hp angle valve not dumpers on crank.

Propeller: 3 bladed Catto 70" Diameter x 74" pitch (already bought)

Ignition: Slick mag on the left; P-Mag on the right

The question is finalized to understand better my propeller choice (3 blade Catto) versus an hypothetical 2 bladed BA or Composite Hartzell CS prop choice.

keep mind that:
Hartzell BA has , on my engine, RPM restriction between 2350 and 2550 rpm above 24" due that kind of crank (Someone know if the BA restriction is a great limitation exploiting the engine power in any RV-7 use?)

Hartzell Composite has NO RPM restriction.


I also thought at 3 blade MT but I read some people unhappy about it so I prefer avoid same issue.


All your experience , opinion and suggest will be really appreciated to forward my final prop decision, together with some numbers about t/o performance (run speed and climb), economy and high cruise speed , fuel consumption, landing distance.


Thanks a lot in advance at all