Anyone running the Holley TBI?

[82355]

I bought a used one for my 1988 V10 Suburban. I got it on there and running. The fuel pressure is low. I had an adjustable regulator on my GM throttle body. Is the one on the Holley adjustable? Anyone have a manual for one of these?

Martin

 

[ekajkrats]

I am running the analog projection. The pressure regulator is adjustable on the back of the tb using an allen wrench. 2 or 4 barrel? I can get either manual.

-Jacob

 

[ekajkrats]

Here is the 2d manual which is similar to the analog 2 except for the pink wire hookup:
https://docs.google.com/file/d/0B83-MdX1dCWMNUI3ckk5S19lZ0U/edit?usp=docslist_api

Here is the analog projection 4(it may be missing a troubleshooting page or two), it is what I am now running as I wasn't getting enough fuel with the 2 even with the pressure abd tps voltage cranked up too high:
https://docs.google.com/file/d/0B83-MdX1dCWMQUw0eXd4UWllYmM/edit?usp=docslist_api

If you need the manual for the closed loop box I can get that too. If you need me to email you the pdfs because the links aren't working you can pm me.

-Jacob

 

[82355]

I just have the stock TBI replacement. It has bigger throttle bores and uses the stock TBI harness.

Martin

 

[ekajkrats]

My bad, maybe this?
https://www.holley.com/products/fuel_systems/fuel_injection/throttle_bodies/gm_throttle_bodies/parts/502-6

Instructions in pdf:
https://www.holley.com/document/199r9813-5rev1.pdf

-Jacob

 

[82355]

Thanks.

Martin

 

[82355]

Those instructions just say to check the fuel pressure. They don't say anything about adjusting it.

Martin

 

[black dawg]

There is an adjusting screw on the top of the tb, at the back.

I have one on a 350, and anything over 7psi is really rich. I think the injectors are 80pph.

 

[82355]

It is at 9.5. The instructions say 12.

Martin