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Old February 3rd, 2013, 04:33 PM   #7
deathbypsi
Brian R.
 
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If its a MAF truck and not speed density there really is no reason to use a Tweecer or tune it with a Quarter Horse. With the right size injectors and a matching mass air flow sensor the factory ECM will run it no problem.

I have a 94 f150 that was 5.0 MAF and last summer I pulled the 5.0 out and dropped in a fresh 5.8 and it was pretty much plug and play. I used the stock MAF sensor and some new 19lb injectors in the 351 and the stock ecm has no issues with the bigger motor.
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