OK so here is my problem i have a 95 gst when accelerating it surges .it started surging thats when i started replacing parts thinking they was the problem

here is a list of what i have done and mods done

16g turbo upgrade, 550cc injectors, walboro 255 fuel pump, 8.5mm spark plug wires high flow cat

now the list of things done to try to fix the problem

i have replaced the head and gasket. i have boost tested and fixed all leaks checked all vacuum lines

any help would be greatly appreciated

 

I see a 255 pump but no afpr. Do you have one?

 

im not sure what that is.

 

no i dont have a adjustable fuel pressure regulator

 

Either swap out the 255 w/ the stock pump or get an afpr. Running a 255 pump w/ the stock regulator your gonna run very rich.

 

fuel filter... iac motor

 

how are you tuning?