This is some nice information I found in another forum I spend a lot of time in.
I know what I will be doing to Mine 400 sportsman if I ever have to remove the head.
i am also in the process of setting up an Extrudabody fuel injection system on mine 78 MG B and I think I will get it all set up and tuned to perfection then pull the head and give it a try.
Claims that you can increase compression ratio and burn 87 octane without pinging,oil stays cleaner longer,increases fuel mileage,horsepower and torque.
They even did it on a briggs and stratton engine.
click on the 2005,2006 etc to see examples of the work.
SOMENDER-SINGH.com - Home

 

Absolute 100% bovine excrement.
Maybe Warren Johnson should look into this to win another championship!! He has be down on a little power lately!!!

 

Now that is interesting.LOL

 

Keep us updated on your mod. Personally I'm not going to be screwing up the precise engineering design of the head on my Hawkeye, but I would be interested to know how it turns out for you.