351C where to start?

[boilermaster]

351mach1,
It appears that basstrix and I are a little bit at odds on your main jet tuning.
I would have you richen up the main jet and lean the PVRC (which in your case ,may be a fixed jet)
and not easily be replaced, you may have to compromise here.
A lot of this may depend on where you live, I see you are in Vegas, basstrix in in Arizona and I am in Michigan @ 600ft. above sea level and have nothing to compare that to.
You are too rich at WOT, but your cruise is a tad lean for my liking here in Michigan where my humidity
is WAY different than the both of you.
Time and testing is the only answer.
Boilermaster

 

[351mach1]

You guys are priceless!

I will say that if I can get this tuned "good enough" that that will be good enough for now. I purchased this carb before I really knew anything and it was the cheapest one available. I do plan on changing rear gears, swapping to a manual transmission, and then upping the power of the motor so I imagine I will be changing the carb to a 700 cfm double pumper when I get around to the rest of the mods.

This has been an incredible (albeit frustrating) deep dive and learning experience into the holley carb!