Adding to that, if you get someone that really knows what they are doing, there is quite a bit of power to be found in carb tweaks.
From what I've seen, Jeff Koerner is one of the best with Holleys. He used to run a well known carb shop with a partner (name escapes me) but Paul knows more of the details. He did a bunch of work in Nascar for Michael Waltrips team when he first started out in Toyotas, and started winning more races with Jeff's modified carbs (before Nascar went fuel injection)
He still offers his carb services at the machine shop and Paul has witnessed first hand what his carbs will do on many dyno sessions where a very mild engine with a basic carb can see as much as a 30 HP gain with Jeff's carb, and a more rambunctious engine gained 100 HP. Paul could elaborate more.
Very cool stuff though.
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