When Ford was Serious Trans Am Competitor (circa 1970)

[Dibbons]

Autolite inline four-barrel carburetor (875 CFM) used on 302's.

 

[MoparMur]

Wow haven't seen one of those since the '80s. Not sure how well they worked but sure were cool to look at.

 

[Runcharger]

A friend of mine had one on a blown SBC in a street rod. No better choice for appearance. I think it ran well, not sure on that though.

 

[GrabberOrange69]

The point of the inline carb was to get around the “single 4bbl” rule. The SCCA was halting the crazy multiple carb setups that proliferated the previous few years. Here’s the 1969 Boss 302 competition intake:

Ford built enough inline and Cross Boss setups for homologation for 1970, but SCCA outlawed them before the season started.

The factory competition Trans Am Mustangs in 1970 ended up with a Bud Moore box, and a single Holley.

 

[1 Wild R/T]

Autolite inline four-barrel carburetor (875 CFM) used on 302's.

View attachment 1156302

So, is it in your possession? Or just a picture? Definitely a visually cool piece....

 

[Dibbons]

Not mine.

 

[1 Wild R/T]

Well if we just want pictures can I play?

 

[33 IMP]

I wonder, is there a visual clue whether one is an 850.... or a 1450?
(Single 1450, on a boss 302?)

 

[1 Wild R/T]

https://inlinecarb.com/index.html

The units once approved for production were sand cast and done by Buddy Bar. The same company that handled the old 1940s Ford blocks for trucks. Assembly and manufacture was done at the Rawsonville, MI plant. A small run of race exp only carbs were made using the DOFF9510T number. The estimates range from 18 to about 35 units made using this number. All of the surviving units located so far came equipped as 875 cfm versions with 1 11/16th throttle plates which pretty much makes them Trans Am BOSS 302 spec carbs.

The second casting number is DOZX9510 with either an A or B suffix. A was for 850 cfm and B was the larger 1,400 cfm unit. These were actually cast as though for mass production instead of the low volume style sand casted units from 1970. The definition is sharper.
The In-Line carb was designed for Trans Am racing in mind but the cool thing is the venturi inserts were changeable. They slipped in place! The Trans Am spec bores were 1 11/16th -inch while the venturi measured out to 1.6 inches. CFM flow was 875 cfm with the Trans Am venturis. Plans to offer a bigger, 2.25-inch bore for increased flow was schedule by June 1970. This would have given 1,400 cfm.

 

[Budnicks]

yeah Ford & Parnelli Jones were all in, in 1969 & 1970
Trans Am Series
George Follmers #16 1969
Bud Moore track prep'd

Boss 302cid/5.0 ltr Mustang
Parnelli Jones car #16, Champion

#14 car

 

[Budnicks]

That 4 Webbers setup Ford had was a hit too
Mostly in the GT40 or the Detomaso/Pantaras
Jim Inglese 8 stack, Cleveland & SBF's
sorry no photo

 

[Photon440]

GM and Ford designed and made their own carbs (as well as using Carter, Holley and others). I wonder what Chrysler would have come up with if they had decided to build their own carburetors. Maybe a single body six barrel?

 

[GrabberOrange69]

...wonder what Chrysler would have come up with if they had decided to build their own carburetors. Maybe a single body six barrel?

It would have been this big:

 

[MoparMur]

That is one ugly fish...

 

[GrabberOrange69]

And big ;)

 

[moparedtn]

GM and Ford designed and made their own carbs (as well as using Carter, Holley and others). I wonder what Chrysler would have come up with if they had decided to build their own carburetors. Maybe a single body six barrel?

Although technically they didn't own them, the argument could successfully be made that Chrysler certainly was
the steering force for Carter for many a decade.