6-bbl on a S.B. stroker?

[Fast_Eddie]

Anyone tried or using a 6 pack setup on a small block stroker?

If so, any details available? I am thinking about it for a 340 stroker buildup.

TIA.

[ehostler]

I would go with the Demon six pack setup. It can better handle the stroker and larger cam profile.

[aarracer]

Eddie

I use a six pack on my 355 and it is great, but requires metering block work to get idle mixtures correct. I've used it on 318 - 292/509 and currently on 355 - 284/484.

If you know someone that can do your advanced carburetor tuning (absolutely necessary)you will be very happy with results, power/driveability/mileage/idle, of a mopar/holley six pack.

The BG six shooter looks nice but uses three 250 cfm (total 750 cfm)carbs with mechanical linkage, versus a 350 and two 500's for/on the mopar/holley package with vacuum secondaries/outboards. He (BG)claims better hp and torque, and possibley so, but doesn't everybody lol.

Absolutely no disrespect for this well known guru breaking in to the mopar six pack market, but probably be just as good to run one of his(BG) 750 four barrels.



Cheers

AARRACER

[909duster]

check this out:

http://www.moparmusclemagazine.com/e...cams_dyno.html

did not do to well

[rumblefish360]

The Demon carbs are 2bbl.'s.
Are they rated as such?

The Mopar 6pak is rated as 2bbl.'s and for a total of 1350 cfm, I believe it will do well on a stroker, but how well I'm not sure. I do remeber some people doing it and likeing it alot.

Many people have said it is like a 780 4bbl. carb when converted to 4bbl. ratings.

I'm not sure about it. I really don't know for sure. When done right, they are stout performers.

[fastnos]

One thing I always seem to see, is different carbs types, but they always put on the original intake. I have heard that these were very good intakes when they were made. However, like anything else, technology always improves with time. Edelbrock hasn't came out with a new/modified intake for the S/B since the early-mid 70's. On the few dyno tests I have seen printed, the limiting factor seems to be the intake flow, not really the carbs.
"Most" people think that a few H/P could be picked up with gasket matching and mild porting, but "best bang for the buck" they usually agree, that a 4 barrel will work out higher. They usually use a single plane intake that's better suited for mild racing. They should be comparing a dual plane to the six pack. (I know there are a few tests out there for dual plane vs dual plane) I would like to see any dyno pulls out there other then the one in Mopar Muscle, with the Barry Grant setup. It was a little 1 sided.

[ehostler]

The Demons are measured as 4 bbl carbs. That's what makes the difference on the numbers (750 vs 1350).

[aarracer]

My flow bench does'nt know the difference between a wide open four barrel or a wide open six pack on a manifold on a head though. I'm not sure what these differring ratings would mean? Please enlighten all of us.

Cheers

AARRACER

[ehostler]

As per SAE standards, test vacuum is 1-1/2 inches of mercury for 4 barrel carburetors and 3 inches of mercury “Vacuum” for 1 barrel and 2 barrel carburetors.

Also, Holley numbers are dry flow and Demon numbers are wet flow. Wet produces a lower number than dry.

[Fast_Eddie]

Thanks for the info guys, I appreciate it.