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Forum: Pontiac - Street 04-11-2022, 01:09 PM
Replies: 55
Views: 7,603
Posted By TB1
SD Performace website list the HS 1.5 rocker...

SD Performace website list the HS 1.5 rocker ratio as "actual ratio is typically around 1.55." also mentions the 1.65 ratio closer to 1.7-1.72 as well
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