Murphy's 2.0 rockers for JD A

[37JD]

Does any body run these, I was considering buying these for our 37 A? Is there any noticeable gains, should it be paired with a reground cam or would they work well with a stock cam?
Thanks guys

 

[Larry Baker]

we run them,lot"s of fella"s around Tn. run them on Deeres.Yes a different cam does make a difference also take the cam followers out and have them refaced also.After 65 years I doubt they are flat anymore and it sure makes a difference on adjustment

 

[johndeereman]

you gain about 4hp on a stock engine of course a cam and stuff changes that some