W/out having a wideband O2 reader/logger,it would be really hard to know what your A/F ratios are during WOT,or just cruiseing around..
What make is the meth inj kit?
I would guess the gear ratio is 308-355 range.
My friend had put a lot of abuse to his stock,but added posi unit to his 8.2" 66 Nova rear axle & had engines from 327- 406 SBC's making from 250 HP about 500 HP running a best of 11.8 ET
The metering rods are easy to take out & just look @ them to see the size/number stamped on them.
MBHD
