Holley Projection 2D

[Gabe]

I would love to do that, and hopefully will be able to in the future, my
stepfather has a 454 in a 3/4 ton 4X4 '72 chevy w/Holley analog 4bbl that needs
the same treatment.  I believe I have seen where there is a place for IAC in the
Holley TB (I think I remember reading somewhere that it is a Chrysler unit?).  I
guess I should start gathering info on what all is going to be needed,  I think
the Holley has 85lb/h injectors.  What would be a good cal to start with?

I was thinking this might be a quick and easy improvement for the short haul
though...

Do you know off hand how much air a BBC TB will flow???  I guess I could as my
uncle how big his throttle plates are in the Holley.

Thanks
Gabe

Bruce Plecan wrote:

> I'm just boring to listen to but why not wire it to a 1227747 (gm ecm), get
> a copy of the demoware from Tunercat, a chip burner, an eraser, and some
> spare proms, and custonize a good computer to your needs.
>    I don't know if any of the holleys use an IAC, might need to get Howell
> to modify it, or get one from a junkyard, the BBC have a 2" butterfly
> Grumpy
>
> | Hello everyone,
> | My uncle came upon a Holley ProJection 2D very cheap recently and
> purchased it.  He
> | currently has an analog original Projection on his Chev 383 that, after
> much "tuning"
> | runs fairly acceptably.
> | What I am wondering is have any of you had experience with both systems?
> Is the newer
> | 2D computer a vast improvement over the analog system.  Do you think it
> would be worth
> | swapping out?  I am under the impression that the 2D still lacks true
> engine load
> | sensing via MAP or MAF but instead still uses TPS like the analog setup.
> | Otherwise he will sell it and attempt to turn a little profit on it.
> | Thanks
> | Gabe
>
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