So I just got my engine back together after discovering 2 broken valve lifters. I have an MTS 5 cam and am still using the original springs and plan to upgrade springs and shaft rockers. Any recommendation for basic springs that will support a max of 4500 RPM without float, and low enough spring pressure to not worry about cam failure? I am under the impression that SBC springs work with minus locks, but the threads here can get a bit muddy on specifics. I'm just looking for something that can go together and not have to worry about broken pedestals if I go on a long trip.