Shag's 3rd carb already? - WTF?

[SELLERSRODSHOP]

i'm kinda late to the discussion here, but on my 351c & even a built 289 or two the best carb setup i found was the holley 750 vacuum sec. i removed the rear metering plate & installed a block so i could change jets like a DP. i also added the quick change secondary spring kit & spring assortment to fine tune when the secondaries would open. the best dual feed line assembly i found was from summit racing (their brand). it was adjustable, has a built in filter & a fitting for a pressure guage. never had an issue with it.