Walter said,
Many of the TSIO-550s with the 7.5:1 CR will be set at 24 degree
timing, making them very close to the 8.5:1 CR engines in BSFC. Don't forget to
throw that into the mix. <g> These have about a 14.7 multiplier
instead of the 14.9 of the 8.5s.
Walter, 24 compared to what? Are you saying 8.5:1 are
less than 24 degrees?
Colyn