I cannot make up my mind about the engines to use in my B-25.
Many people are using the RCV 91CD engines and it seems that they are performing more than adaquatly. What about the RCV 90SP? There will be no cowl butchering if the Sp is used. i have heard that cooling is a concern with the SP engines in a closed setup like a P-51 and the like but there should be suficient airflow in the open radial cowl.

Comments will be apreciated.