this is how i see it. i ran stockers in the LQ9 with the GT2-5 cam now with the TV2 cam and some extras im running trickflow 7.4s only reason was the deal i got

but as i see it with a hardned pushrod you have only one option and thats bending a valve with a stock pushrod you can bend a pushrod and not worry about a valve bending since the rod will bend before the valve. so 1hr to replace pushrods or forever to swap out heads or etc

 

your rpms shouldnt be a factor in determingin the length unless you are talkin about hardned rods, i dont remember but its god insurance for pretty cheap

 

that's what i meant