I have a c5 corvette with a p59 ecu so I could run 3bar os with flex fuel
car idles and drives at cruise and partial throttle well. i started trying to work on wot tuning and it starts breaking up when it gets to wastegate pressure. if i can keep it 4-5 psi at part throttle it runs pretty well. i am new to tuning so i don't know if there is a table somewhere that i am missing. it doesn't feel like spark blowout or a misfire, its hard to explain.
the setup
6.0 gen3/4
twin 66/73
bosch 210s
twin 450 pumps
ngk bkr7 plugs gapped at .025
alcohol content around 79%