[Glenn Briglio]

Originally Posted by jswoodfin

We installed a Holley Dominator EFI system on our Altered and are struggling to reach the expected performance of this package. I realize an Altered isn't a legal Stock/Super Stock package, but I know that many of you have EFI experience.

I'm looking for an EFI expert/guru to review my data and provide feedback to improve the performance. I've had some help along the way, but believe we're missing a lot of power.

The 417 SBC "should" produce 900+ HP, but we're only getting 660 HP.

Who do you lean on when you need EFI help?

Thanks,

Jeff Woodfin

Did you contact Holley?