Holly carb help

Josh A said

This is definitely a light throttle application stuff I'm having my issues with being rich be it lower speed or high speed constant cruising. If I go straight from idle to full throttle carb seems on point, afr is good and it just wants to blaze the tires thru 1st 2nd.
Maybe after i checked the pv something happened to it or maybe the gasket was bad out of the box perhaps

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At light throttle and lower than interstate speed cruise the manifold vacuum is higher than stopped with idle in drive.
The idle or more correctly low speed circuit is manifold vacuum dependent.

Four corner idle will let you correct for this on a combination with poor idle vacuum (under 9" or so).
Use the locked distributor to figure out a good idle in gear tune. Then you'll know how it ought to be set up when youy unlock it or get another.
Step by step make changes in timing, primary throttle, and idle mix. If needed crack the secondaries a bit more. When the carb is off for setting the transfer slots, see if the secondary slots are as low as the primaries. They often are not, in which case can't go bu the amount exposed as a reference on the secondaries. Their job is mostly to provide some transfer juice when the secondaries open.