Justhereforinfo

iTrader: (1)

I have a 5.7 ls1 with 243 heads and a custom cam. Cam is low duration, specd for truck use. Im using my stock 2003 4.8 truck intake/exhaust/tb/maf/injectors.

I think my stock injectors are 26#. With the stock intake and exhaust, I expect to make around 330-350whp through the auto. Stock converter and limiter.

Will these 26# injectors support my fueling needs?

black00chev

iTrader: (2)

They should be... I think my '00 5.3 has only 19# stock and with my current setup they are running at 93-95% IDC peak. So you should be good, but only one way to really know for sure!

Justhereforinfo

iTrader: (1)

If your 19s are maxed at 300whp, my 26s will probably be maxed at 330-350whp. Duty cycle shouldnt be over 85% right?

black00chev

iTrader: (2)

Ideally yea no more than 90% but I have no issues. Im also right around 330hp now with a good tune, LTs and ory.

And I could be wrong about what size my stock injectors are. If mine are the 24-26# injectors then you might want to look into some in the 30something range.

Justhereforinfo

iTrader: (1)

Thats good news. I should be good then. Thanks