So im running a stock 6bolt motor with a magnus street intake and bc 272/272 cams. Im only seeing 12lb of vacuum at 850rpm idle. Is this right, know cams can lower your vacuum but I didn't think that much. Also, are 1g and 2g o2 sensors the same besides the plug? When I did the 6bolt swap I forgot to swap the sensors out while they were easy to get to so now that the motor is in I was hoping I could just cut and resolder the correct plug. I have an 02 sensor socket but the last/first/only time I have used it, it stripped the hex right off the outside of the sensor.