Holly pro-jection 4 question
Thread Starter
Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
Holly pro-jection 4 question
Have a chance to pick up a new in the box system pretty cheap. Flows 900 cfm and is a complete system. I will have to install a fuel return line but could put it in the overflow tube in the filler neck. Does anyone here know of any issues or is it an OK system? Thanks
Thread Starter
Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
Thanks for commenting. I just went out and looked over the ECU and there is nowhere on it where it states which it is. I will say that even though this unit has never been removed from the box, it is a number of years old...maybe 15. Thanks.
Pro
Joined: May 2003
Posts: 593
Likes: 0
From: London England
As far as I know (which isn't much), about the after-market Holley EFI systems, the earliest was the Commander 950, but that's only around 5-6 years old.
I don't know if Holley have ever made an OE system or a complete/partial replacement for the Crossfire system?
I don't know if Holley have ever made an OE system or a complete/partial replacement for the Crossfire system?
Drifting
Joined: Oct 2007
Posts: 1,317
Likes: 22
From: Marina CA
I had one years ago the screwdriver tune-able one. It worked but was not fun to set up. The lap top tune-able one is light years better.
Once I got it closely dialed in it was actually a good system.
Once I got it closely dialed in it was actually a good system.
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Le Mans Master
Joined: Jul 2000
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From: columbia city in
they did my tbi.
Racer
Joined: Dec 2005
Posts: 368
Likes: 4
From: . New Zealand
I once had one of the early Holley Projection 4 units with the 3 screw adjustments on a 460 Ford in a Cobra, could not get it to adjust well enough, actually burnt a piston so we took it off and fitted a 870cfm Holley Street Avenger and it went way better. Now that they have the self learner type units, I'd be sure that it would be fine.
Melting Slicks
Joined: Aug 2008
Posts: 2,200
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From: Lehigh county Pennsylvania
