While pricing a new cam - the DC engine book says I need these springs.

installed in factory j heads with 340 springs, the spring are 1.49 in dia . my old ones were 1.46 in dia . i'm just going to grind a bit more off the rockers . # 1 exhaust got a bit of a mark on it from the rub , it was hitting the spring and would spring back n forth , thats the worst one . a few more have a witness marks . but just the one exhaust has a groove cut in it . hoping it did not wreck the guide and valve stem . and of course the machinist is not returning my calls . what an ***...le . i guess sending 5k does not with him wasn't enough to get after sale service . think he should stick with building chevies . sorry about hyjacking your thread , just tired of fitting someones over sights .