What's the latest engine these days?

[norman96]

Hi guys, been off the air for 5 years with a dormant project. I have built the complete airframe of a RV6A. Wiring and interior almost complete. Nothing firewall forward, I was going to buy a Sam James cowl. Last time I was around I was planning an O-360 A1A converted to Airflow Performance Fuel Injection built in Kamloops. http://www.aerosportpower.com/
I have already installed the electric fuel pump.

What is the engine of choice these days?

What is the best propeller?

Is Sam James still the best cowl manufactor?
http://www.jamesaircraft.com/

I would like to assemble the components to finish and get back at it.
Thank-you if you can help.
Norman Hunger
RV6A Delta BC