Carb choice

[DAndy ART]

I have a 318ci with a edelbrock 1806 carb on a 67 Dart. I have read a little about the new 1906 AVS2. Both are 650cfm.

The question is whether or not to invest on the new AVS2 or keep the 1806. Is there a significant difference?

Any thoughts welcome. Andy

 

[Abodybomber]

I have a 318ci with a edelbrock 1806 carb on a 67 Dart. I have read a little about the new 1906 AVS2. Both are 650cfm.

The question is whether or not to invest on the new AVS2 or keep the 1806. Is there a significant difference?

Any thoughts welcome. Andy

Honestly : what camshaft, gears ,and exhaust...do you currently have ?
And how much further ,do you want ,to go?

 

[DAndy ART]

No idea on cam. Running 3.55 with LSD. 2.5" exhaust. Just street. More responsive would be nice. Autocross and mountain driving in the future but also have a 416ci in a year or two's time....

 

[Frank Mopar]

If you do a cfm calculation for a 318 you will see a 650 is way too big for a 318 and thats why she feels lazy.

 

[DAndy ART]

Is 500cfm AVS2 going to be better then????

 

[Frank Mopar]

Is 500cfm AVS2 going to be better then????

I would think your response would be much better.

I have a 600 on my 360. I put a 750 on, ya know, bigger is better. Nope, 600 is back on.

 

[Johnny Dart]

For the 318 an Ede 1405 600cfm is perfectly matched. Great signal, and throttle response.
Your EdeThunder Series 650cfm is an awesome carb, but better matched for a 340/360.
Good Day

 

[Blackhatguy]

The only reason Mopar got away with putting 800 CFM carbs on everything is because the thermoquad is a spread bore, with tiny little primaries. The secondaries only opened up as much as the motor demanded. A square bore carburetor will always have the secondaries the same size as the primaries, making the primaries too big for smaller and lower RPM engines. I had a 600 Holley on a 350 about 10 years ago before I switch to Mopar, and it put out 322 to the back wheels. Later, I switched to a 750 and it put out 331 to the back wheels but was a dog under 3 Grand. Not worth it to over carburate something.

 

[rumblefish360]

I would not change the carb. Up or down in cfm. The AVS II will have a slight advantage in the primary operation. Not enough to justify the cost of the new carb. Keep tuning the carb and engine timing.

 

[xLURKxDOGx]

I have a 318ci with a edelbrock 1806 carb on a 67 Dart. I have read a little about the new 1906 AVS2. Both are 650cfm.

The question is whether or not to invest on the new AVS2 or keep the 1806. Is there a significant difference?

Any thoughts welcome. Andy

[FOR SALE] - Edelbrock 1405 600cfm

[FOR SALE] - Carter 4758s 500 Competition Series

Jake