After the initial dyno/ break in run of my nitrous 470, I will need to reinstall the inner valve spring, they have been removed to prevent wearing out the cam during break in, my question is; Where can I buy a good quality, known good, shaft mounted valve spring compressor/ retainer tool?? I've seen them in the Powerhouse catalogs, and others, but I want some recomendations. My dyno guy is an old die hard Chevy guy, Joe Sherman, but we won't hold that against him, and he may not have the above mentioned tool to do the job, so like any good car guy I'm willing to buy one for me, It'd be another "toy" in my tool box. Thanks Gary G
