Leslie - street tires are great to learn - I use streets on my car - they scream pretty loud before they let go - which is what you want when you are learning. and you have to start somewhere.
My names not on the list Loren yet ...
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"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower"
-Mark Donohue