Truck feels real strong. i have yet to put on my Glacier Diesel 392 kit or my filters or big line kit so that might be where my problem is. when i put the smarty on a timing setting it cutts out real bad at upper RPM. again i have the TST R37 with auto timing and all twin flashes. stock clutch seems to be slipping i think. havent seen the RPM'S jump like i have on other slitting trucks but it seems to level out right away. Prolly due to me draining the rail. . anybody got any ideas on why it does that. i did hit 23000 on the rail PSI. EGT's are crazy till i get a turbo. My MP8 has yet to arrive! im happy with it now, cannot wait till i get the fuel system put on. just so much power levels to try before finding the right one!!