I am talking with a Moparts vendor about a hydraulic roller for my street 340. I was told that I would not have to worry about adjusting valves with this setup and I could still get a performance upgrade with the roller setup. But looking at a hydraulic versus a solid roller, does one have a performance advantage over the other (vacuum, torque, etc.)

Sorry to jump in on your thread, but I thought that this question may become informative.

Thanks