cause the guy had stock size springs good for .500 or .600 for a good price no 550. plus that gives me room on that cam for 1.6 rockers too. I wanted to go with a 546 lift but i may have valve-piston issues at that lift
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2000 Tahoe Z71 5.7
1982 Z28 Pacecar 305
1999 S10
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