well at about 2600 rpm and 45psi the sound of the engine changes could this be the intake valves getting blown open if i have weak springs less of an engine sound and moe of a buzz when it does it
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2003 Std Longbed 5sp, , AirDog, Smarty Revo TNT-R, TST R49, Fluidamper, FBD 5in Sewer Pipe, Valair Ceramic Clutch With Billit Input Shaft,S300/HT3B Twins, Head Studs, 80#/40# Boost, Rail pressure, Fuel pressure, Egt, Water/Meth, Ladder Bars