engine working good,but when i push gas power lose on 1991 Infiniti G20

engine loses power under load

1 answer
You may need a fuel filter. If the filter has not not been replaced in recent memory, it's a good easy thing to try.
If you want to find a specialist, here's a directory link for you:
https://repairpal.com/directory?address=60436&car_brand_names=Infiniti