Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

Rich Secondary?

<< < (2/2)

Cliff Ruggles:
If you aren't getting any hesitation/stumble/bog going onto the secondaries then the pull-off and spring tension for the flaps are fine.

Seat of the pants testing can be difficult and for sure the little 350 would NOT work well without the kick-down hooked up or manually shifting it.

I would also imagine a 350 2bbl would be pretty low compression so not making a ton of power right to start with.  If you really want to nail down the best secondary metering rods I'd look for a chassis dyno or wonder over to a local track on test and tune night and make a few runs.

That's what I do with my car, or did back when I was dialing it in. 

I started "pig" rich with .030" rods and increased the size .005" each run till it started "surging" just a tad in high gear on the top end of the track.  Amazingly there really wasn't a big difference from rich to going pretty lean far as ET and MPH were concerned.  The spread for all runs was barely a tenth and 2mph and most runs were much closer than that........Cliff

Navigation

[0] Message Index

[*] Previous page