question about my car leaning out.

[GNJesse]

i have 83 pound injectors and a walboro 340 pump but it leans out starting at the top of 2nd gear and up after that. 02's drop to the 300's. i bought the pump used so for all i know it may be stock or wworn out. seeing that its leaning out like this, do you think tht the pump is the problem? i have a new extender extreme chip in the car so that should be fine. any help would be appreciated.

Thanks
Jesse

 

[Quick6'n'-K.C.]

300 isnt possible without blowing it up

I have personally seen the wires that are supposed to be grounded at the back of the passenger head cause the reading on your scantool to drop off during a pass like you have described.

Check the 3 main lugs at the back of the head to see if they are properly grounded.

I take them and mount them to the intake manifold using a stud on the back intake bolt, alot easier to get to them
BW