Hey guys run the 275 Spartan everyday and only issue I get is a flat spot in acceleration at around 2k RPM on the freeway if I'm going to pass someone. Does not happen at full throttle, only about 1/2 to 3/4 throttle. It is a small flat spot, almost feels like the truck is dropping rail pressure for a second, but everything shows good on the DD. Anyone else have this issue??? Thanks for the help.