Where is your AFR gauge mounted? Try and focus on it, as long as its not down on the console.
You should see go rich lean right before it nose dives.
What do you have your alky knob set to? Maybe its ramping up too quick.
A lot of great suggestions here.
I respectfully disagree With the oil throwing it out of balance. The oil does not have a chance sticking to the crank when centrifugal force is at work.
Im not a pro balancer but my machinist is and I know the motors he balances are the smoothest running Buick V6’s you will ever feel. You would...
These people love to push and push them cry when they get shot.
This is what needs to happen. These people can’t just be left to get away what ever they want. She lucky she didn’t get shot. Stop provoking!!
Do a third gear pull without any shifts. Put the shifter in regular Drive.
Get the speed up to 45 mph and lay into it. If it shifts down, abort and try again starting with a little higher speed.
If you can get a clean 3rd gear pull with no knock, any knock in lower gears is false. Transition or...