D2,
Spreabores with mechanical secondaries?
I thought the whole purpose was the fuel economy of small primaries and the
power of big secondaries?
The Carter is a Thermoquad, right? with the plastic body?
The Rochester is a Q-Jet probably. GM loved those. Car Craft just did an
article on tuning them. They are supposedly complex but good when set up
properly(hard to do). I ignored it since all my cars have Carters or EFI.
How do you get the Rochester on the stock manifold? An adapter? The factory
manifold should be set up for a standard carb.
Rob
>Rob, the answer is yes, spreadbores. The green Sedan (Green Machine or GM)
>has a Carter. Its the one where the secondaries do not have venturies,
>just some needle deal that goes across (I am not sure if this is
>aftermarket, but the car came with a Holley form the factory). The
>secondaries are mechanically opened, but there is a spring loaded flapper
>over the secondaries which is opened by the air flow (doesn't take much to
>open it). This car has an Ederblock CH4B. This manifold has been
>discontinued long time ago, but according to some hot rodder Mopar
>magazine, its supposed to be very good for high speeds. The black LeBaron
>has the stock iron manifold (the engine is from a 69 New Yorker) and has an
>unusual Rochester which is even more spreadbore than the other car (ie the
>primary/secondary throttle size difference is more pronounced). This carb
>(also mechanically activated secondaries) is for GM products, since its box
>(which I still have it, the original Holley is in it!) says GM on the
>outside. D^2
>
>At 05:49 PM 7/11/2002 -0400, you wrote:
>>D2,
>>Both your Imperials have spread bores? What intakes do you have? I'm
>>mostly familiar with 70-71s, but I thought they mostly came with the
>>Carter AVS. I know some came with Holleys, but your spreadbores are an
>>aftermarket thing, right?
>>ROb
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