murphy's roller rockers

Well the fit and finish is excellent. I feel they're well worth the money I can't give you numbers different between them and stock but I can tell you my 88 is snappy I'm also using his intake. Jeff is top notch.
 
Last winter I put an LP 450 head on my Farmall Super M & I mated it with Murphy's roller rockers. Really woke it up! Murphy's roller rockers are a high quality product that looks good and are easy to install. Well worth the money if you want a little extra advantage over your pulling competition. Jeff is very patient and willing to answer questions that you may have.
 
They (along with Josh Blackburn's cam grind and head work) put noticeable more power in my Brother's '48 John Deere A....no mpre powering out in the fast low gear on any track and if rules permit, he pulls it in second on "loose" tracks......13.6 Firestone 151's @ 5500 lbs. Close to 50 horse I'd guess.
 

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