I use the Walbro, put the stock sock on the bottom of it for better fuel pickup.
I'm running 290rwkw on E_Flex (E70, so 25% more fuel needed than with PULP98) with perfect AFR's before doing the direct battery wiring, but since then have done the direct battery wiring for peice of mind.
there's a lot of walbro hate round here. But for me it seems to be working a treat!