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car running lean.... need immediate help

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Discussion starter · #2 ·
here is some info about my car...

- F150 4.2l block

- Ported and polished heads

- Ported and polished lower intake

- Ported and polished upper and throttle body

-Morana racing 224/224 camshaft

- Hardend pushrods

- Comp Cam springs

- 4.10's and posi

- Mac longtube headers

- Mac hi-flow catted h-pipe and cat back

the car was tuned to run with all of this via sniper but not tuned for the egr delete. the car had these mods before the rebuild and worked fine. I not longer have the sniper tuner but have an xcal 3.
 
Discussion starter · #10 ·
so those ports should be blocked off? i cant imagine why because there is an open hole through them anyways, i just made it bigger and the egr is capped off anyways, but im going to go try that with the xcal, do i have to run the car to datalog im assuming?
 
#17 ·
can you up your fuel any with your x-cal? seems when you widened the ports your allowing more air from somewhere, add a bit of fuel.
 
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99v6stang
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