Right now my truck stumbles pretty bad from 1900-2400 give or take rpms when trying to accelerate. Its a 96 with 215 pump. I just installed a HTT 64/71/13 and 7x.010 injectors. It was also doing it with the 370's but figured it was just the injectors. My timing was set at 16.5* but I'm guessing its slipped and it causing this. I'm going to adjust the timing somewhere between 20* and 24* next week after I get back from this trip.

Thanks for any input.

 

check your fuel filter if you haven't already. that cured mine from the same problems you are describing

 

Fuel filter, overflow valve and finally delivery valves. Depending on the injector, you may need them as I know standard 370s will stumble in that RPM range. Timing that far ahead isn't really good unless you are planning to start sled pulling.