91 octane limits

[virus77]

I live in Cali and we have **** 91 octane around, I'm boosting 8 psi right now and everything is fine but im bumping that pretty soon, I can run toluene when needed but for my daily driving i wanted to know my limit. What would be the max I could run on 91 octane out of a 50 trim t3/t4. Its tuned with an emanage and timing is retarded and everything. I have wideband, guages, duty cycle, knock and MAFS covered, but i need to monitor timing for piece of mind what do you guys recomend. Is there any way i could use the profec e-o1 inputs to monitor timing, it has pulse, and analog inputs, just a thought.

[virus77]

cmon, i want to boost today

[nizmo240sx_22]

You should be fine for alittle more. Not sure but around 11-13 psi. How much is your timing retarded?

[95_240sx]

You should be find for 15psi on 91octane as long as your timing is conservative.

Rick