ok guys, i need some guidance. my motor bogs at any RPM below 2 grand. at around 2 grand, the car pulls hard. what can be the reason for this? my relevent mods include b16 pistons, msd 6al, msd blaster 3 coil, magnecor wires, gsr head, aem cai, kooks 4-1 headers. its a B18A1 block with a 94 GSR head. please help

 

what inj. you using?? adj fuel pressure reg might help you out

 

its your 4-1 header. If you are really rich in the low rpms, leaning it out a lil will help.

 

i guess by inj. u mean injectors? i dont know. i got the car this way.

 

i think ur right about it being rich. theres evidence of that all over my muffler tip. how do i lean it out?

 

You'll have to buy a fuel controller or adjustible fuel pressure regulator. Controller would probably be better since your problem is just down low. The regulator will change the fuel pressure and effect all rpm.