Hot rod magazine article on testing popular flathead manifolds

[1932tub]

Originally Posted by Bassman/NZ

Back in the 60s a local hero had a single seater special that was flattie powered. It was bored, stroked, had all the tricks, and he was the NZ beach racing champion for a while. I asked him why he only ran a locally cast super dual type manifold on a big inch race engine, and he replied that he had tried many combinations, but the super dual type produced a seat of the pants improvement over all the other combinations he had tried. Interesting stuff.

What manufacturer, Schuter?

[Bassman/NZ]

If memory serves me well..... yes. I used to be in a rod club in the 60s with Frank's son Rod Shuter. He was one of the very first people in NZ to paint a car in metalflake. Then he built a wicked 59 Ford called StreetCleaner, but I sure wish I'd got to know Frank. I seem to remember Rod saying his old man had a stroke.

[1932tub]

Yes I remember seeing the Street Cleaner in Autorama was really cool in the day.
The Shuter looked like a copy of the Edelbrock Twin Super to me.
Who owned the special?

[russcc]

If you knew, and understood Barney Navarro, you would know why his manifolds preformed as they did. Everyone has their favorite camshaft or manifolds, but the facts are the facts.

[40 Deluxe]

OK, so what's to know and understand about Barney Navarro? Sounds interesting!

[2935ford]

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Originally Posted by Ol' Ron

JWL's Book "Flathead facts" published in '04 had a similar series of dyno tests including the super dual.
I ;oke the old Offy superdual and used them on the hydro and Bivele engines. I bores them out for 2GC carbs. They have considerably more meat on them. Also you can use the late Holley 2100 (54/6) Pickup carb

x2 JWL has done a lot testing and very good info with plenty of dyno engine pulls with multiple types of intakes. A very good read.....I have a copy and higly recommended!

[Bassman/NZ]

Originally Posted by 1932tub

Yes I remember seeing the Street Cleaner in Autorama was really cool in the day.
The Shuter looked like a copy of the Edelbrock Twin Super to me.
Who owned the special?

Neil Stuart. He also had a Lotus single seater. He lived in Sth Brighton which was very sparsely populated in those days. He used to use the road he lived on as a test track.
The flathead eventually got replaced by a Jag.

[Ford Flathead]

Originally Posted by 40 Deluxe

OK, so what's to know and understand about Barney Navarro? Sounds interesting!

He is was a true pioneer of the speed performance industry. There is a great book called Merchants of Speed that explains a lot.

[Roger/Sacramento]

I would be curious to know what size jets were used on the 97's.

[my4dv8]

So I imagine an Eddie Meyer hirise twin with the heat riser would perform a bit like the thickstun?

[lonewolf]

A good read

[jimTN]

Does anybody make a wedge shaped apacer to mount on the 49-53 4b intakes that will level the carb for early flathead use. All the late manifolds I have seen have the carb mtg surface at a slant.

[Ol' Ron]

Not to worry, it will work just fine.

[Chris]

I found the article very interesting...if fact I was in the middle of swappig a tall Thickstun PM-7 to an original Edelbrock slingshot when I first rear it late last year. I got the car back on the road but have not had it out enough to see if I notice any difference

[GreenMonster48]

Originally Posted by jimTN

Does anybody make a wedge shaped apacer to mount on the 49-53 4b intakes that will level the carb for early flathead use. All the late manifolds I have seen have the carb mtg surface at a slant.

Just let some air out of your back tires