I bent a valve a while back(put it together out of time) so Im rebuilding. When I took it to LC motosports for the guides and seats($220! ridiculous!) the guy told me with the kibblewhite valves I bought I will need a stiffer spring, I just ordered oem springs thinking they will be good, and I dont see anything labled any different. What springs do you guys suggest? I dont want to spend an arm and leg considering I'm running out of arms and legs after buying everything else. Thanks guys.