Here is a shop for you to check out if you want www.portandpolishing.com
custom performace and machinery, his name is Bryan Feilds, he is an cycinder head expert, former team menards IRL member worked in there engine develoment program, his prices are competitive with other good shops. he is known for his cylinder head work.. Real nice guy, does excellent work!! Go to his web site or call 765-537-9900. Even if you live out of state ship them to him, he will fix you up and he is onest, tell him Jon Perkins with Toby cheeseman racing sent you..