ETC limiter 1997 Corvette

[Throttle Works]

We installed a crate LS3 in a clients 97 C5 Vette which the ETC limiter is stepping in at 62-6300 rpm.

We use HPtuners for tuning our GM vehicles (probably a swear word here), anyway, HPT does not have the ETC rev limiter disable parameter for these PCM's. I dropped by and spoke with Rob at ATP here in Boise and he pulled the file off to take a look in EFiLive. Sure enough the settings are there , Engine Calibration > Rev limiter > B2201, B5401, B3301. However it looks as though everything is already disabled or moved up high enough in the rev range.

Any ideas what settings we might be missing?

Thank you in advance.