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Rebuild head Thumper performance

780 views 6 replies 4 participants last post by  malmgrdc 
#1 ·
Did somebody had used thumper performance to work on their engine head ?
 
#3 ·
haven't heard of them..

check out the vendor section, modern perfomance, fwd, realtune, agp, cncport -- they do lots of work
 
#7 ·
I remember when I was in the foxbody crowd, a lot of those guys use them. They're good.
 
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