Working on a Novarossi .21 that will be fed 65% Nitromethane. Took a few pics to share!
Its the small details most over look that make all the difference. The fuel channels on the sleeve are obvious modification that have their purpose and place... The inside view of the sleeve is where things aren't so easy to see or explain and where things get MUCH more complicated... Very small changes inside there can make many degrees of change that make all the difference!