Broken Valve Spring - Which New One?
I bought an on-engine spring compressor from Hughes Engines when they sold me their 1110? springs. It works great. It looks a lot like that proform.
BTW; those 1110 springs work great too. They were the recommended ones for their HE3237 cam, which I purchased on the same order. With a quarter turn of preload on their 5003 lifters, and with 1.6arms,that cam just pulls forever. I yank the stick at 7200, but its still pulling.