292 offy intake edelbrock carb throttle linkage help!

[geezer#99]

I don't think you'll be happy with your throttle return spring like that. It needs to pull forward and not down. As you have it once you have the throttle wide open the spring will hold it wide open. The spring will go overcentre when the attachment bolt on the throttle starts to go back. JMHO

[daverod]

That would kinda suck.

[Captainfab]

I don't know if you are aware of this, but that header wrap will drastically shorten the life of your headers.....just thought I'd mention that.

Originally Posted by Joey Newell

i bought the wrap at O'reilley's god i hate that place. i used 4 rolls at $45 a roll it wasnt cheap but i know it will be worth it plus they look sick!

[geezer#99]

x2 on the header wrap. Especially in a wet enviroment that you live in.

[mr andrerson]

nice!!! working up quick... looks good too!

[Joey Newell]

Originally Posted by Captainfab

I don't know if you are aware of this, but that header wrap will drastically shorten the life of your headers.....just thought I'd mention that.

great point thanks man. im ordering another set of headers and ill run the wrapped one's in the summer

[bama63]

i could not tell about your intake but back in the 80s i ran the offy intake on inlines at the local dirt tracks and if yours is the same as the older versions you can remove the 4 mounting screws on the mounting flange and simply turn the carb straight ahead,i ran holleys and it was a necessity as the fuel would be forced out of the bowls in the turns and completely flood the engine and as far as performance goes everyone twisted these 10,000 to 13,000 rpm (not a typo)and man would these sixes go!

[Captainfab]

The header wrap not only holds moisture against the headers, but it also traps the heat. This is even more extreme during the warmer months. Not allowing the headers to cool off somewhat quickly, essentially cooks the metal of the header, which results in the metal breaking down.

Originally Posted by Joey Newell

great point thanks man. im ordering another set of headers and ill run the wrapped one's in the summer

[Vernski]

Originally Posted by bubba327

Subscribed!! I have the same issues but I am trying to use a 7448 2 barrel Holley on the Offenhauser intake.
Has any body ever machined the chamber of the Offenhauser making it an open chamber like the Clifford??? Wonder what performance issues would change..

Vernski I will be up north someday for a ride!!

Hey Bubba sorry I missed you post until today a big howdie and a mighty fine you can ride anytime sir...Vernski

[daverod]

Originally Posted by Captainfab

The header wrap not only holds moisture against the headers, but it also traps the heat. This is even more extreme during the warmer months. Not allowing the headers to cool off somewhat quickly, essentially cooks the metal of the header, which results in the metal breaking down.

If it's so bad why do people put it on?

[Captainfab]

Well, in some cases it is needed for heat control. This is often the case on race cars, but most of those guys understand that it will shorten the life of their headers. It can be necessary on the street sometimes as well. But IMO a lot of the guys that use it don't really need it. They either [B]think[B] they need it to control heat, or use it just because it looks cool. Regardless, most guys aren't aware of the effects to the headers.

Originally Posted by daverod

If it's so bad why do people put it on?

[Joey Newell]

i have a question. do i need to add a breather to my valve cover or is the stock one enough?

[Heater63]

That is a "breather" cap shown in your picture-it should have mesh filter material or "stuffing" and a lot of holes on the underside cap lip. It allows fresh air to be drawn IN to the engine when the PCV valve opens and allows dirty case air to be drawn OUT into you induction system. You will need a PCV valve in the smaller valve cover hole.

[daverod]

Thanks Capt. I think it looks cool and I wanted to put some on my headers. I changed my mind.

[greg64]

Joey, I've got a similar setup. Offy manifold on a 292. My carb is oriented so that the float bowl points away from the engine (driver's side). At first, I had a cable that pulled from the valve cover side, similar to what you have. It worked, but there was more friction in the cable than I liked. So I switched it all around.

The cable now pulls from the fender side, connected to the lowest tang on the throttle link. The springs are connected to the top point on the throttle, and come back horizontally towards the drivers side. The bracket I made is attached to the two carb mounting bolts under the float bowl (away from the head). It's been working great for years now.