Hello,

I have a set of 4782 and 4783 6 pack carbs, that came on a 6 pack Challenger I bought needing restoration.

These carbs dont have vaccum actuated outboard carbs, they are mecanichally actuated and each outboard carb has an accelerator pump. Kinda like a double pumper holley carb.


If I use these carbs, I would probably be bulding a stock looking 6 pack engine with the internal tricks like ported heads, hyd roller cam and a stroker bottom end.

I was wondering if these carbs are useable, or if I should just sell em an get a set of original 6 pack carbs for my Challenger.

I would like the car to run good and hard on the strip, but 95% of the time it would see street use. I would hate if they would not be streetable and would be fouling the plugs all the time at part throttle, etc.

I use them in my 400hp 360, 11.2 to 1cr, home ported J's, small solid cam, 520 lift 244 @.050 on the intake. 727 with a 4,400 9.5" vert. Absolutely love them, floor it and the car just jumps and takes off. They flow more than the original 6 packs, like about 1,100cfm. The outer carbs are just a 850dp cut in half.

Here is a thread I started over at FABO. Has some part numbers ect...
http://www.forabodiesonly.com/mopar/showthread.php?t=275946&highlight=hustle+stuff+pack

Some quick things to consider they run a little fat at off idle and cruise like most holley dp carbs. I have my center carb at 64 jets and my outers at 76/77 staggered and WOT is lean at 13.6 . If your running them on a BB I would start with the stock jetting of 64c and I think 80/ maybe 82 outers can't remember. Only adjustment to idle is on the center carb but the outers contribute. Set the outer transfer slots square and then don't touch them. Set your idle speed and mixture with the center only. I found on my setup that it idled and ran better with the timing about 15 initial and not 18/20 so that allowed me to open the center throttle blades a little more for a more balanced air flow while still keeping my idle in park at 1,000. Wide band is a help and my center squirter went from 31 to 37.

these carbs were on my cuda when I picked it up in 1994 - I couldn't get the car to really run - so I put the MP electronic ignition kit in - but went with the lighter spring kit - then rebuilt the carbs - center had 31 shooters and 64 jets, outboards had 28 shooters and 82 jets - 6.5 power valve, air/fuel screws at 3 full turns, and my timing was 12 degrees with 36 total and full advance in at 1800 - NGK plugs gapped at .040, 3500 converter and 3.55 8 3/4 - not sure on the cam - was in motor, but with 915 heads and 2" Hooker Super Comps - the car was a riot - rediculous power - I can't imagine what these guys are feeling now with 5-6-700 horsepower on tap - and traction control - lol, but I love these carbs. I will not get rid of them until I see how the stock carbs run after Scott at HARMS went through them. The MP engines book say's "not to run them" - but I loved them - instant kick in the pants and no burps or sputters ever...my btw Domingo - I drove my cuda for almost 20 years like this - not everyday obviously, but street and highway - maybe 3 times a week - work on weekends sometimes 25 miles each way, no fouled plugs, - forgot about the stage 3 MVB in the trans - that's coming out for a stage 2 shift kit - the car was very driveable... I still like these carbs

Shakerjoe....I would be really interested to know how do the stock carbs compare to your old direct connection carbs once you get em running.

Be sure to come back to this post and do a follow up!!

the 4782 and 83 holley carbs are AWESOME, have run and setup many of them over the years on big and small blocks. The small blocks will need a good converter / cam etc, or 4 speed to realize their full potential. The BIG blocks JUST Respond immediately to the mechanical features. To totally optimize them for either application they will respond very favorably to tuning. Even out of the box they work well, But tweaked, AWESOME. once they are dialed in jetting wise etc. they just FUNCTION!!!

Domingo, if you decide to go a different route and sell/trade those carbs, let me know. I have 1 4783 and 1 4782 carb. Been looking for 1 more, but will buy a complete set if needed. I have a complete set of Vacuum carbs for a 340 that I traded for. I could send pics if needed. Keep me in mind.... joe