Speedmaster Rods, can i trust them?

And i guarantee that my "outdated" MP590 camshaft kit isnt gonna lifter issues like everyone has been having lately due to the poor lifter hardening thats been going around

I am building the same 340 that you listing off, except i have Scat rods, it is just stuff i had laying around and we are going to put it together and see how it runs.