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Depends on lift. I only spin my 514 to 7500 rpm but I'm close to .900 lift so the recommendation was to use Ti on the intakes.



We're also at .900 lift.. and after talking with my engine guy today.. He is solid on stainless steel for my application.. So I guess that means we are for sure going that route..



The main difference is, with the 2.30 valve, it is harder to control it with the heavier valve. A valve not controlled, is a bad thing so you need to run higher spring pressures. That's the trade off. I've used both and don't believe there's a performance gain, just piece of mind. I hope it runs to your satisfaction this time Don.