Originally Posted by
vnmsgt
What would be necessary to change if you are going to run 20%. I have been running 20% now on my fully modded .21 for about a 1/4 gallon and it seems good.
Here is what Chad, Trinity Tech Man, from post 1277 said:
"You can run 20%. You will need to remove 1 head shim.
The fully modified comes partially broken in.. I would run another 4-6 tanks rich before really laying in to it..
I still think you should run 30%.. for one, more power and two, will run cooler.."