I have a MY02 bugeye WRX with

VF34
STi 500 cc pink injectors
full decat exhaust incl decat up pipe
reflash
walbro pump
mrt dual fuel rails
mrt intercooler
STD intake and filter

AF531 rom code

The car is jerky when you get on the throttle. What sort of tip in enrichment factors should i use?

Umm...why don't you have a downpipe yet???

Try scaling the entire Tip-in back a full point. Test that and go from there. That should smooth it a bit.