RE: Holley carb ID - warning - long read

[Rich Kinsley <rlkinsley@xxxxxxxxx>]

Thanks guys for all the good info. I like expanding my horizons and 
checking out the alternatives. I still liek my Eddy's but I think it's 
good to have some knowledge of as much as possible.

Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies

=====================================================================
Steve Charette wrote:
> 
> Rich,
> 	Back in the good old days there were the the 650 through 850 cfm
> double pumpers with mechanical secondaries, and the 3310 vacuum operated
> secondary which they then referred to as the 780.
> 
> 	The double pumpers were 4150 series carbs, which had metering blocks
> front and rear, and were dual feed.  IIRC they were numbered as follows:
> 
> 600cfm 4776
> 650cfm 4777
> 700cfm 4778
> 750cfm 4779
> 800cfm 4780
> 850cfm 4781
> 	
> 	The standard accelerator pump body was only about 5/16" tall, there
> was a 50cc "Rio" pump that was maybe 7/16" or 1/2" tall that was used on 
> the
> fronts on some of the larger carbs.  We used to put the Rio pumps on the
> secondaries on 850's to help 440's launch better.  383's seemed to like 
> the
> 750's better.
> 
> 	The 3310 was also a 4150 series carb with metering blocks front and
> rear and dual feed.  There was a large dashpot on the passenger side of 
> the
> carb that opened the secondaries; the rate was adjustable by changing
> colored springs in the dashpot.
> 
> 	Most of the OE carbs found on Mopars were 4160 series single feed
> carbs with an aluminum transfer tube that ran from the front bowl to the
> rear bowl.  The floats, unlike the aftermarket carbs which were 
> externally
> adjustable, were internally adjusted with the adjustment hole plugged by
> discs that were prone to leakage.  These carbs also had a metering plate
> under the secondary bowl (in lieu of a metering plate) that resulted in 
> the
> carbs being about 1/2" shorter (front to rear) than the 4150 series.
> Unfortunately the metering plates had the metering cast in as opposed to 
> the
> replaceable jets of the metering blocks.
> 
> 	The Holleys seemed to be plagued by leaks, blown power valves, stuck
> floats, and needed all kinds of flaky vent tubes, jet tubes, and other
> widgets to get them to work right.  It also seemed that you had to 
> change
> the jets every time the sun went behind a cloud.  But as hard as we 
> tried,
> we couldn't make the AFB/AVS carbs of similar flow ratings run as fast.  
> We
> even ran a six-pack for a while, with both OE carbs and aftermarket
> replacements, just for the thrill of all these problems multiplied times 
> 3.
> We tried all kinds of different gaskets but after 2-3 weeks of sitting,
> you'd turn the fuel pumps on and the carb looked like a lawn sprinkler.  
> We
> finally gave up and started running twin AFB's - and never looked back.  
> I
> recall throwing a hot 383 in my '63 wagon, and rather than the 
> Torker/750
> (which was virtually guaranteed to cause a fire) that was on the shelf,
> grabbed an old 343hp dual quad setup that hadn't been used in years.  I 
> blew
> the dust and bugs out, bolted it on, and went for a ride.  Never had to
> touch the carbs for the 2 years the car was together, and the carbs went 
> on
> to my 70 Sport Fury GT for another 2 years before (future at that point)
> wife #2 decided she didn't like the stares the car got (Black on Black 
> with
> Black interior, blacked out bumpers, etc - we called it Darth Vaders's 
> staff
> car).  A whole lot of cars in the Tri-Cities saw a whole lot of 
> taillights
> because of those carbs... but I digress...
> 
> 	Eventually Holley started making spread-bore carbs (4165 series?) to
> replace Quadrajunks, and then special replacement carbs for other
> applications, as well as the 4500 Dominator series.  I always try to 
> look
> for the older 47XX series or the 3310 just so I know what I'm looking 
> at...
> anything else is like a box of chocolates - you never know what you're 
> gonna
> get - and that's all I have to say about that.
> 
> 	Information above is guaranteed to be 89-90 percent accurate.  Only
> problem is figuring out which part is the other 10%...
> 
> SC
> 
> 
> -----Original Message-----
> From: Rich Kinsley [mailto:rlkinsley@xxxxxxxxx] 
> Sent: Monday, November 23, 2009 10:35 PM
> To: 1962to1965mopars@xxxxxxxxxx
> Subject: RE: Holley carb ID
> 
> 
> I don't know squat about Holley carbs, yet. I just thought they were all
> double pumpers? Thanks for all the input.
> 
> Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
> 
> ====================================================================
> Steve Charette wrote:
> > 
> > Rich,
> > 	IIRC the 3310 was a square bore vacuum secondary carb that they used
> 
> > to refer to as a 780cfm.  I've seen it recently as a 750, but I don't 
> > recall them having a rear accellerator pump.
> > 
> > SC
> > 
> > -----Original Message-----
> > From: Rich Kinsley [mailto:rlkinsley@xxxxxxxxx]
> > Sent: Monday, November 23, 2009 6:10 PM
> > To: 1962to1965mopars@xxxxxxxxxx
> > Subject: Holley carb ID
> > 
> > 
> > 
> > 
> > Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
> > 
> > I have a Holley carb that I'd like to ID. I was told it's a 750cfm. 
> > It's a 4bbl double pumper with 3310-6  and 2959  stamped on the choke 
> > air horn.
> > There's a P-80 cast on the main body side. Under the air filter gasket 
> > area there's a 6R 6931  and the sec nozzles are ^SR-107. Can anybody 
> > ID it correct?
> > 
> > 
> > ----
> > Please address private mail -- mail of interest to only one person -- 
> > directly to that person.  I.e., send parts/car transactions and 
> > negotiations as well as other personal messages only to the intended 
> > recipient, not to the Clubhouse public address. This practice will 
> > protect your privacy, reduce the total volume of mail and fine tune 
> > the content signal to Mopar topic.  Thanks!
> > 
> > '62 to '65 Mopar Clubhouse Discussion Guidelines:
> > http://www.1962to1965mopar.ornocar.org/mletiq.html. 
> > 
> 
> 
> 
> Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
> 
> 
> ----
> Please address private mail -- mail of interest to only one person --
> directly to that person.  I.e., send parts/car transactions and 
> negotiations
> as well as other personal messages only to the intended recipient, not 
> to
> the Clubhouse public address. This practice will protect your privacy,
> reduce the total volume of mail and fine tune the content signal to 
> Mopar
> topic.  Thanks!
> 
> '62 to '65 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html. 
> 



Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.