EV-27
Rick,
I changed to the higher flow injectors, and a stage II chip, the powercommanders were not as popular at the time and maps were
not as available. I also shaved 50 thousands off the heads to increase compression, using the stock 80 inch EVO pistons.
Detontation was not a problem when I went with the 27 as the higher lift lowers overall or static compression, in fact the stock RK detonated in the high summer heat, and with the new cam and stage II chip that went away. So shaving the heads kept compression up and thecam brought it down probably leveling it off at 9 to 1. it was not running lean by any means.
If I had to do over I would add the powercommander to the bike and had it dyno tuned. Probably put on some Khrome Werks HP+ slip ons, but I really liked the Porker Straight Pipes with the baffles in, great sound.
I would still do the stage II to get rid of the rev limiter and advance the base fuel and spark.