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Dennda709 · 03-02-2013, 12:12 PM

According to Mr Holroyd a "good casting" does not have the boss for the secondary squirter. The Hedworth prepped carb has the boss and the Holroyd does not. Holley's had added the boss for double pumper versions. The Holroyd prepped carb has a casting date of 883. Which translates to 3rd week of August, 1968. According to the guy I bought the casting from it was originally on a Ford. Converting my SS Corvette to a True 10.5, so no need for a class legal carb.

03-02-2013, 12:12 PM	#3
Dennda709 Junior Member Join Date: Jul 2012 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: 780 Holley Carbs SS/S Legal According to Mr Holroyd a "good casting" does not have the boss for the secondary squirter. The Hedworth prepped carb has the boss and the Holroyd does not. Holley's had added the boss for double pumper versions. The Holroyd prepped carb has a casting date of 883. Which translates to 3rd week of August, 1968. According to the guy I bought the casting from it was originally on a Ford. Converting my SS Corvette to a True 10.5, so no need for a class legal carb.