Author Topic: secondary metering rod suggestions, Cliff?  (Read 2424 times)

Offline wcumagic

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secondary metering rod suggestions, Cliff?
« on: January 01, 2013, 08:16:10 AM »
      Cliff, I've spoken with you a few times on the phone about my carb and I'd like a suggestion of some secondary metering rods.  My carb is a 17056259 and it has the factory rods in it (you suggested to me on the phone they should be sufficient for what I'm doing).  It was rebuilt with your HP kit and its sitting on a Mopar 340, bored .030 over with a cam and head work (shaved, multi angle valve job, polished, and I think the intake valves were modified from 1.6 to 2.02 (?)).  Forged pistons, long tube headers, and all the good stuff.  The plugs still LOOK lean, but you know. 
       I dont remember exactly which secondary rods are in it, but you knew what was factory last time I spoke with you.  My point of this whole thing is, I'm taking it to the dyno probably this month and I'd like to have some rods on hand to swap out between dyno runs.  What suggestions might you have, and would you mess with the secondary hanger at the same time?  I've paid for 3 dyno runs, but he said it'd probably turn into 4 or 5 so I've got a little time to adjust it and play with it.  The fella that runs the dyno said he's seen as much as 40 HP from adjusting the timing and carb on the rollers, so I'd rather not leave that on the table if I can help it. 
       Any and all help would be appreciated!

ps - the power increase from the Holley to the Quadrajet is dramatic.  I feel terrible I left that crappy holley on it for so long!  It went from freight train to pin-your-ears-back muscle car!    :o

Offline Cliff Ruggles

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Re: secondary metering rod suggestions, Cliff?
« Reply #1 on: January 04, 2013, 04:40:13 AM »
Stock should be CV, with long .052" tips. 

For a dyno session, I would get several sets of our machined metering rods with long tips.  I'd get .035", .040", and .045".  Doubt if you will need anything leaner than the .052's.

Stock hanger is fine, since they would all be long tipped rods.......Cliff