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Discussion Starter · #1 ·
Title says it all. Will I be able to rev to 5700 on my Autometer tach or will I need to upgrade to stiffer springs. I have 4.10's and am afraid I'm going to run out of motor before the traps. Thanks.
 

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You will definatly need to upgrade your springs...with that tfs stage 1 cam you may get it to rev to 5K before you float the valves. I tried to run the stock gt40p springs with a stock cam and 1.7 rockers...it floated them by about 5200.
 

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Discussion Starter · #3 ·
ttt
 
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