Cascade Crew

blue89 · Posted: Sat Jan 29, 2011 10:55 pm Post subject: Holley Secondary

Does anyone know how you adjust the secondaries on a manual secondary 4150? Mine isn't opening up all the way. I have no adjustment on opening and it appears that the lever is too long or that the hole has been hogged out from use on the secondary arm.

You can see it on the left side of this picture. Its the shiney inch long lever that links the primary and secondary.

RSFreak · Posted: Sun Jan 30, 2011 12:44 pm Post subject:

I know very little about carbs, but on the Quadrajet there is a "stop" that can be bent down or cut off to allow the secondaries to open fully.

iansane · Posted: Sun Jan 30, 2011 8:49 pm Post subject:

What is this car-brew-a-tor thing you speak of? Very Happy

Sorry I don't know diddly about carbs.

blue89 · Posted: Mon Jan 31, 2011 9:06 am Post subject:

I'm beginning to think no one knows carburetors any more. I will stop asking questions about them.

Twilightoptics · Posted: Mon Jan 31, 2011 12:46 pm Post subject:

Bend the rod to get the opening you want.

RK82 · Posted: Mon Jan 31, 2011 5:45 pm Post subject:

blue89 · Posted: Tue Feb 01, 2011 3:58 pm Post subject:

Bending the rod changes the timing on when the secondaries open. I really just need some fuel injectors so I can multi port this bad boy.

Twilightoptics · Posted: Tue Feb 01, 2011 4:35 pm Post subject: Re: Holley Secondary

iansane · Posted: Tue Feb 01, 2011 5:45 pm Post subject:

blue89 · Posted: Tue Feb 01, 2011 7:12 pm Post subject:

I need a set of 21 lb hour or so. Gotta support 400 HP.

iansane · Posted: Tue Feb 01, 2011 8:21 pm Post subject:

Alphius · Posted: Tue Feb 01, 2011 8:56 pm Post subject:

Too bad I tossed my two sets of LM7 injectors or I'd give em to ya free.

Lotsa things get tossed when this guy moves... Laughing

iansane · Posted: Tue Feb 01, 2011 9:56 pm Post subject:

Whaaaaaaaat? Should've just given back to me. Laughing

blue89 · Posted: Tue Feb 01, 2011 10:02 pm Post subject:

I have a few misc sets of injectors too but not a complete matching set of 8. I should just go get a set. I think its the only piece missing from my EFI setup. I'm a lot closer to the CCC hub now, no excuse to come out. All I need now is a trailer to get the car there.

And I just discovered I have a 750 throttle plate on a 650 main body. But at least I got the casting flash removed, throttle shaft slimmed, venturies cleaned, choke horn removed, and it's ready for DYNO! Twisted Evil

iansane · Posted: Tue Feb 01, 2011 10:04 pm Post subject:

Schultzy89GTA · Posted: Tue Feb 01, 2011 10:06 pm Post subject:

Alphius · Posted: Tue Feb 01, 2011 10:07 pm Post subject:

turbo_jimi · Posted: Wed Feb 02, 2011 6:19 pm Post subject:

aaron_sK · Posted: Wed Feb 02, 2011 7:21 pm Post subject:

chevymad · Posted: Wed Feb 02, 2011 7:29 pm Post subject:

Or you could buy a whole new baseplate.. or even billet base plate. Nice thing with a holley is there are alot of parts available.

I havent said anything on this thread either because I havent had a double pumper since high school. Every holley i've had since has been a vac secondary. The few times I've worked on them, i've figured things out by looking at them, but just dont remember well enough to tell someone else how. I would probably try as Paul said though and just bend the link.