To valve or not to valve...
#12
Pm Fernando at cft or tony at t1. Also Evans tuning. All three will steer u in the right direction. From what I have read u do want to upgrade not for performance per we but for peace of mind and longevity at that power level.
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#17
On our b-series motor, we had issues with the supertech stuff. They would warp under big power and not seal. We run ferrea in all our stuff now. The supertech stuff is good but once you start to get around the 800hp area then they become a problem.
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I heard the same about their valves but the springs sounds good, what do you think about them?