Fuel trim issue - whipple

[cmxenon3333]

Hey guys! Having some fueling issues. Just installed a fore level 1 fuel system on my car and now it's running 30% lean at idle. Tuned on e85 by Lund. If I rev it above 4k the fuel trims are perfectly normal. It's only the LTFTs that are 30% lean. STFTs are perfect. I've checked all fittings, connections, wiring, everything is perfect. As far as the way my system is routed - return on pump to return on regulator, feed on pump to one port on the regulator, other port is where my rail is fed at the OEM adapter. Both my whipple rails are crossed front and back with the original whipple lines. Don't know what to do at this point. I've tried to include any information that I think is useful/important. Anyone have any ideas? Thanks!

Mods -

Whipple 2.9L
DW 95 LB injectors
132mm TB

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