Attention: TDR Forum Junkies 
I've discussed this with several people in PM's but I never felt it was a good idea to discuss it on the open forum without all the disclaimers.
As the rack travels further, we are simply injecting a larger volume of fuel through the the same restrictions and starting injections at the same time. So what does this mean? You are just making the injection process longer.
With small injectors, (370's and less) you'll be injecting fuel most of the way down the power stroke. The fuel injected at the end of the stroke doesn't have time to burn before the exhaust valve opens. So you'll have severe popping and backfiring under maximum fueling and higher rpm (2900+ depending on your
timing). Advancing the timing will delay this because the entire injection cycle is moved earlier and you can accelerate 100-200 more rpm per 4-5° of timing advance before the popping begins.
Fuel injected so late in the power stroke doesn't make more power either. It causes tons more smoke, super high EGT (1700+) and a poor running engine at high rpm.
Also the pressures on the plungers and barrels are increased as they now have to compress a larger volume of fuel into the same space. They will wear out quicker under the extreme pressures.
My personal pump (913) is only 8 months old and was ran without a plate for most of its life. When I took it to the pump shop to have it spec'd one barrel was much weaker than the others and it cost me 200 cc's to balance the rest of the cylinders to the weak one.
Is that a result of pushing so much fuel for so long? The world may never know.
I agree that the rocker can't move far enough forward to get into the spinning governor and tear itself up, but there are many other reasons that a little (note the word little) fuel management is necessary.
-Chris
As the rack travels further, we are simply injecting a larger volume of fuel through the the same restrictions and starting injections at the same time. So what does this mean? You are just making the injection process longer.
With small injectors, (370's and less) you'll be injecting fuel most of the way down the power stroke. The fuel injected at the end of the stroke doesn't have time to burn before the exhaust valve opens. So you'll have severe popping and backfiring under maximum fueling and higher rpm (2900+ depending on your
timing). Advancing the timing will delay this because the entire injection cycle is moved earlier and you can accelerate 100-200 more rpm per 4-5° of timing advance before the popping begins.
Fuel injected so late in the power stroke doesn't make more power either. It causes tons more smoke, super high EGT (1700+) and a poor running engine at high rpm.
Also the pressures on the plungers and barrels are increased as they now have to compress a larger volume of fuel into the same space. They will wear out quicker under the extreme pressures.
My personal pump (913) is only 8 months old and was ran without a plate for most of its life. When I took it to the pump shop to have it spec'd one barrel was much weaker than the others and it cost me 200 cc's to balance the rest of the cylinders to the weak one.
Is that a result of pushing so much fuel for so long? The world may never know.
I agree that the rocker can't move far enough forward to get into the spinning governor and tear itself up, but there are many other reasons that a little (note the word little) fuel management is necessary.
-Chris
Why demand answers, and then call me a liar in one way or another when I answer. 
Those who know me realize I don't recommend things that I have found not to work.
