Interesting articles about LaRoy Engines I found with a few minutes of google searching. I've been impressed with them during the Mopar Muscle Engine Challenges they have entered and done well.

http://www.hotrod.com/events/coverage/mo...ax-performance/

http://www.hotrod.com/events/coverage/mopp-1203-the-amsoil-mopar-muscle-engine-challenge/

http://www.bigblockdart.com/forum/showthread.php?21093-La-Roy-Engine-in-Mopar-Muscle-WOW-AGAIN

https://board.moparts.org/ubbthreads/ubbt...heads-from.html "I'd recommend Jim and Cody LaRoy of LaRoy Engines in Challis, ID. They do hand porting only and put the Edelbrock RPM heads into the 345 cfm range at .700" lift and the Victor heads 365 cfm at .700" lift. (208) 879-2969."

http://www.forabodiesonly.com/mopar/showthread.php?t=172734