injector issues

[89 S-PACK]

ive been having some issues with my ea when i cold start or leave the car longer than 10 mins switched off... it blows petrol smoke like you wouldnt beleve and idles like **** for about a minute, but if u rev it u can hear it running lean but after that its fine.... i pressure tested the pump recently and i was told it was meant to be about 200kpa at idle and mines been living around 130-110kpa at idle. my fuel reg is new and the petrol filter gets changed every 10.000klms

my ea is on duel fuel and i do run on petrol on very time i drive the car... i let it warm up on pet and cos i have had issues getting the gas tuned so i run on pet everytime im driving in town and the lpg is basically used for highway driving atm untill i get it sorted

im a bit loathed to put s\h injectors and pump in..... is there any difference between the ea and the eb ed xr6 ones???? i know its hardly worth it putting new bits in being d\f but i would rather do it now than later when it does pack up in the middle of nowhere