When I used to play with cars there was a racing class that only allowed the engines to be kept to as issued, no changes other than original specs. To that end we would find the lightest piston and rods and makes them all weigh the same, and do a bunch of other invisible changes that upped the power right through the engine, and all within specs.
Is there a text, or has there ever have been any time devoted to accurizing enfields within as issued specs?
