Hey guys I need a little help. Just installed twins a couple weeks ago. Top is HTT 64/13 S300 and bottom is S480. At 70 psi the truck pops and sounds like the blow off valves are opening. Ran them down almost max still does it at 70 psi. Took blow off valves off and plugged the two holes, still pops. Plenty of fuel with twin pumps. (Rail relief opening?) All boots are good and tight and will hold boost pressure. Have F1 springs installed.
Any Ideas?
Thanks
Any Ideas?
Thanks