350 tbi fueling with vortec heads

[Connor Fischer]

I just installed my 350 tbi with vortec heads and a cam and I was wondering if anyone else had a problem with the engine running lean, and what they did to fix this
Camshaft specs are 204/214@50

 

[SKFengineer]

Others will weigh in on this but you're going to need to likely adjust your ECM and fuel pressure to address the extra fuel needed by your modifications. There is a sticky on this forum talking about upgrades and fuel is one of the biggest weak areas on these systems in stock form. The good thing is you can fix it. Check out the sticky talking about performance mods and good luck.