The 547 4 Cam Carrera engine had high CR (11+:1) and a true hemi chamber with twin plugs and incredible RPM potential. These engines make wortless power on the street as I have driven this one
http://www.aircooledtechnology.com/p...era/index.html
When I had it here for repairs a couple of years ago..
These engines run about 75K to REBUILD STOCK.. They don't make any power below 5K RPM and they are very finnicky to tune...
Here's Brent and posing with an Abarth tuned 547 from a 59 Carrera GT that raced at Leman in 1960
