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If I have to choose 1, I choose a Holley because I can work on it. There is nothing wrong with a properly built Quadrabog. It is the best of both worlds, however I have never successfully built one for myself. But I answered the poll with Fuel Injection so it's a moot point anyway.
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
I have a Quadrajet in my 68 427 and a Holley in my 65 L79. I am always tinkering with the Holley. The Q-Jet seems to just run and run with no tinkering. The Holley carbs seem to deliver more power through the RPM band because it has larger primaries. The Q-Jet has very small primaries and is very fuel efficient. You need to get into the secondaries to get to the power from the Q Jet. Both have their plusses and minuses. I have a Speed Demon in my 61 and consider it the best of both worlds. Makes lots of power and I never need to play with it.
I have a Quadrajet in my 68 427 and a Holley in my 65 L79. I am always tinkering with the Holley. The Q-Jet seems to just run and run with no tinkering. The Holley carbs seem to deliver more power through the RPM band because it has larger primaries. The Q-Jet has very small primaries and is very fuel efficient. You need to get into the secondaries to get to the power from the Q Jet. Both have their plusses and minuses. I have a Speed Demon in my 61 and consider it the best of both worlds. Makes lots of power and I never need to play with it.
I've got a box full of Holleys... But the Speed Demon is on my car!!!