What's causing this-fuel filter/line?

[sweet97]

I am running a DSMchip in my EPROM ECU with extended maps for running high boost on pump. I run 25+ psi boost on 93 octane with a Holset HX-35/40. Buschur stage 3 and all supporting mods. Walbro 255-rewired, AFPR, DSMchip for inj compensation and the extended maps/AFPR at 40psi line off. New Advance Auto stock replacement fuel filter. The chip has fuel cut removed. However at high boost and high rpm's(7500-8000) I get what is like fuel cut but a bit milder. One quick jolt. A/F on wideband is 11:1 and timing is 10* with the extended map. IDC is 90%. Leaning my MAFT makes it worse, I get multiple misfires. Raised the base pressure no help. I am leaning towards the filter/filter to rail line. Thinking of the B&M filter and the line kits out there. Suggestions? Anyone had this happen and resolved it? Thanks in advance, Mark

 

[justin0469]

it would definately be worth getting a higher flowing filter, cant hurt. 1g fuel pressure is supposed to be 37psi i believe and it might be worth getting ECU+ or DSMlink