Model b in minnesota

I've been working on a model a with a hopped up b motor for about a year. I am looking to see if anyone out there knows of anybody who works on these motors in the s.e.Minnesota area. I am at the end of my rope trying to get this thing running well. Everyone I can find to this point knows the stock motors but gets lost when some speed equipment has been added. Let me know if there is anyone out there in my area. Thanks