Casting out among CVOA Members for information & feedback, possible engine performance enhancement modifications at some point with the Air Intake Housing. Noticed after 5 years of ownership of #1057, the air filter canister end cap or opposite end from the inlet horn, circular pattern of perforation 1/2" holes had been discovered verses the traditional blanked or solid end cap. Holes dimensionally appear as manually drilled as an attempt for additional air flow capability enhancement with the conventional inlet horn? FYI, the pulse air system has been eliminated prior to this ownership. Appreciate if any history is available. Many Thanks! Jim McIntosh