Springs for a thumpr cam

My new project has a 318 with 308 heads, and I'm gonna do the deal on it, and I am gonna swap out the cam for a 20-600-4 thumpr from comp cams. I don't wanna have to take these heads off to get them machined for a double spring, so I was wondering if an 1102 from hughes engines would work right? Any cam doctors out there? Thanks!
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