If i remember right,there was a factory four barrel intake on some of the last Thunderbolt straight eights that were made.You might contact Steve Williams in Napa California.He is a Packard/Studebaker freak of sorts.
EvilDr235
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Two types of people drive old cars.Rich people because they want to and poor people because they have to.
Remember EvilDr235 has a cure for Your sixness.