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Username Post: Best upgrade carb for a stock 1973 250 4.1?        (Topic#372776)
mean60impalagene 
Contributor
Posts: 201

Reg: 01-31-13
03-18-23 11:20 AM - Post#2855899    

Has anyone changed the carb from thee mono carb to an upgrade?



 


Tony1963 
Frequent Contributor
Posts: 2046

Loc: Orlando Florida
Reg: 07-09-18
03-18-23 04:35 PM - Post#2855903    
    In response to mean60impalagene

If you are running three Monojets, that's a considerable upgrade from the factory setup. The engine can definitely pull in more air as you have tripled the intake capacity.

I see going any other route as a waste. Be sure that you have a free flowing enough exhaust to be able to handle the additional intake airflow.

People fear change because it threatens what they know, or what they claim to know.


 
bobb 
Super Senior Member
Posts: 6249

Loc: paradise
Reg: 09-05-03
03-19-23 12:28 PM - Post#2855925    
    In response to mean60impalagene

ive heard of holley weber 2 barrel conversions. you wont get tons of power out of that engine. i would do a compression test, better yet a cylinder leakdown test and cam inspection before spending any money on it.

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


 
Tony1963 
Frequent Contributor
Posts: 2046

Loc: Orlando Florida
Reg: 07-09-18
03-19-23 01:00 PM - Post#2855930    
    In response to bobb

That's a great point. That engine was never known as a horsepower giant, but that little inline six made enough torque to move each of the Chevrolet vehicles (except Corvette) over its lifetime as the base engine.

Perhaps it is best served in its stock configuration?

People fear change because it threatens what they know, or what they claim to know.


 


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