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jswoodfin · 08-15-2017, 09:43 PM

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

08-15-2017, 09:43 PM	#1
jswoodfin Junior Member Join Date: Dec 2015 Posts: 9 Likes: 0 Liked 0 Times in 0 Posts	Holley EFI Help 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