I emailed a TFS tech guy a while back about max cam lift with stock short block and twisted wedges, and he said that their TFS stage 1 (221/225 @.050, .499/.510 lift) was the biggest you could use without flycutting w/ 1.7 rockers. I'm assuming thats saying that their stage 2 (224/232 @ .050, .542/563 lift/) is the next step up, but I dont know what the limit really is, especially if you have 1.6's
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