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NEED A STRAIGHT ANSWER 2 BBL 0R 4 BBL

  
Mopar Muscle
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NEED A STRAIGHT ANSWER 2 BBL 0R 4 BBL

 
socom.baby socom.baby
New User | Posts: 1 | Joined: 10/13
Posted: 10/18/13
08:34 AM

Confused I currently have a 1973 Dodge Charger with a 318 (auto trans).  It, of course has the original 2 bbl carb.  I know every thing invovled in switching it over to a 4 bbl and the cost.  Will I kill the bottom power (too much fuel, not enough air) or will the top end benifits out way the loss? OR  Am I better going with a jetted 2 bbl?  Saving the 4 bbl for a dream 440.  

IQ52 IQ52
Guru | Posts: 858 | Joined: 06/10
Posted: 10/18/13
05:22 PM

The problem would be getting too much air and not enough fuel. You could get a carburetor so big the engine couldn't draw enough air buy the boosters to create the vacuum needed draw fuel out of the bowls.

Use a small carburetor, say, 500 cfm and a manifold designed for the 318 (like the Edelbrock Performer 2176) and you should see some power improvements.  

drmopar drmopar
Guru | Posts: 1445 | Joined: 02/08
Posted: 10/27/13
04:34 PM

iQ52 IS RIGHT, bigger isn't always better when it comes to carbs, a nice 500cfm will work great on the 318.