I was running 4 Holley 94's. I really liked how it ran. Straight linkage, 3.5" PVs .051 jets. The only issue was they leaked. No matter what. Even when I went through them to seal em down , they seeped. It got everything DIRTY. Then I went to 4 Nicely rebuilt Strombergs. They ran good but still had a little (teeny amount) seeping. Those are now set aside for my Olds motor and I went with new strombergs to see if the hype was real. It IS. Holy jeez these things bolted on and I had it tuned at an idle in 15 min, for 4 carbs. Smoother throughout the range than the holleys, and definitely more pep. And they are clean. No leaks. Big fan!