Hmm, apologies to all if I've mislead people with my lack of knowledge of ionsOriginally posted by r30jeff
Just chrono it dude,
The Ion gauges are pants for accuracy apparently, I've run mine at an indicated 190-200 psi all year with no bother for bang on 300fps
Coblers, unless it's got a QEV I've not seen a Ion run that low for 280 - 300 fps