Need more fuel?--what do you think

[FoxBodyGT]

Went to the dyno the other day to check out the combo (gasket ported cobra intake and GT40 heads, FMS rockers, stock cam, 70mm TB, headers, o/r h, mac catback, 5 speed), and was disappointed. My max hp was 216 at 4400 rpm's and max torque was 278 at 3800.

Problem became apparent when I looked at the a/f--rising to 16 at 5000rpm.

I am guessing a new fuel pump will solve my lean problem. Putting one in this weekend, I hope.

Any thoughts on my condition?

 

[5.04Life]

I'm no pro so wait for one of the more experienced guys on here to chime in on this, but what pump are you currently running? The stock one, which I believe in our year is the 88 lph? I recently installed a 155 lph kit and adj. fuel press. regulator and it helped me out a lot, no more ping at above 4000 rpm at WOT in 2nd and 3rd gear, and mine is basically a stock setup so far. But it is definitely worth looking into, you may want a 190 or 255 if you plan to do more, just my worthless 2 cents. Someone will straighten me out I'm sure.

Chad

 

[DMAN302]

You should be making good HP numbers up into the 5000-5500 range..you need to get some fuel in there to correct the lean issue. I wouldn't be surprised if you picked up another 20-30 hp in the high end when she's fed properly

 

[darthcual]

Your TB might be a bit to big for your application and also I'd dump a bottle of Barryman B12 in a full tank of gas to make sure your injectors are nice and clean. Also a new fuel filter which is a cheap and easy do it urself will help some.

DC