The biggest benefit of the Holley's is they don't suffer a lot of the fuel starvation problems the Quad's are known for in the more extreme apps. I'd say unless you're doing some crazy engine building run a stock Quad and you'll be plenty happy. They're very tunable and offer decent economy and performance. I have nothing bad to say about the Holley's either. I run a stock one on my Challenger and the car has yet to burst into flames.
