For in-line Stromberg’s on 331 Chrysler hemi. Looking for input into throttle linkage, ideas and throttle rod hook up to the throttle pedal. If you could post pics of your set up, that would be great Thanks.
Used to be a fella on here who did a lot of Stromberg setups on early hemis. Stromberg97 or Strombergs97, see if a search will turn up his threads/pictures. Anyone know what became of him?
With in line set up,you could just use 2 mid carbs an bring in the 2 ends last/late=Would just be a mod 3x2 prog. with two center carbs moving together. Something like this. Look around. https://www.speedwaymotors.com/97-9...DwN1IjuypWukui6WamodVh2xUZyHIXgxoC0FAQAvD_BwE Or do all 4 at the same time; Thats what I do,with my 4x2,mine is home made intake and linkage =but my own are not in line{ its a box lay out/so can't do them anyother way. I'm using 94s, homemade linkage n fuel log.
Impossible to answer without knowing the internal configuration of the intake manifold. If a plenum type manifold, then either straight or progressive. If an IR intake, straight only. Personally, regardless of the style of intake, I would do straight linkage. Jon
You can buy the small hiem ends and make you own linkage. Make sure you get both left and right hand threaded ends - such that you don't have to pull the ends off the arms to adjust. (Just loosen the jamb nuts and spin the rods). I make my own rods - with a RH and LH thread on each end (using a LH die for the LH end). It is very important to have high quality throttle arms - many of the cheap ones will slip on the throttle shafts - screwing the sync up.
We initially set this 4x2 straight linkage up using cheap Speedway type arms. As stated above, they can and will slip on the shafts, especially with the amount of load 4 carbs adds to the linkage. I ended up finding some heavier cast bronze arms and that solved the issue. The RH/LH threaded heims do work nicely for straight linkage. I am currently setting up a similar linkage for the 3x2's on my 32 5w.
Another trick is to position the arms where you want them (usually about 10:00 or 2:00 o-clock) and drill the arm and the throttle shaft for a "roll-pin". Once the roll-pin is inserted, then the arm is locked down to the indexed location on the throttle shaft. Too bad we don't have splined shafts and arms for our Strombergs, 94's, etc..
The roll pin idea was plan B, but these did the trick. A friend bought a box of these unmachined bronze castings at an Edelbrock yard sale (when they were moving). I drilled and reamed them for a tight fit and they have stayed put. Noble Speed has all the stuff you need... High quality arms https://www.noblespeedequipment.com/product/throttle-arm This is a 3X2 kit, but I'm sure he could set you up with a 4x2 kit https://www.noblespeedequipment.com/product/make-a-linkage-3x2
Does anyone have a reference of a source of small rod ends that are "loose" enough for smooth operation on carb linkage. The ones I bought (industrial source) are too tight and bind the linkage.
My design progressive linkage. I guess it will work if the intake is open to all 4 carbs. Rudy Faltermier, South Carolina made the arms. I obtained the threaded rods form Speedway. I don't know if Rudy is still in business. I don't have contact info for you. If you want to try building it I can send you a better picture
Forgot I have this setup sitting on a 365 Cadillac powered rod out in the shop. Hook your accelerator to the 2 center carbs right side. I always use Stromberg 48's.
I have no clue as to whether or not this manifold has a plenum - another poster eluded to the fact that it does not . . . so he will need straight linkage (all carbs at once). Also, buy a UniSyn device (Jegs has them) so you can synchronize the airflow. The carbs will not run correctly if you don't, and you'll have rich/lean conditions on various cylinders.
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