1999 Pontiac Trans Am SLP Dyno Testing - Trans Slam
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Another component of SLP's 375HP Pac is the No. 50185 1.85-ratio rocker arm package (adds 10-percent lift) that retails for $599.95. The '98-'00 LS1 will need the No. 51185 rocker arms w/springs, retainers, and keepers due to its higher-lift cam (0.500-inch lift). View Related Article
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