If you live significantly above sea level, adding a turbo would be good to adjust the air back to sea-level pressure. The ADA on the non-turbo pump can work like a very limited ALDA. Slap on a KKK K03, T25 or GT17, set it at 5psi, run a line over to the ADA and you can have your full 62hp at any altitude. May even get better efficiency and burn cleaner because of the extra air available. VW did that with their EcoDiesel engines, turbo with no boost enrichment and non-turbo power.