wait a minute .... You have a 417 stroker... and its not snappy enough ???
... if you go to 3.91 or 4.10 you will notice it and she will freak because the engine is racing ! and unless you are racing it I dont see much advantage for you. I would tune engine and fix shift point issue 1st.
30 miles is a LOOOONG way to drive with 4.10s...lol especially if you are not used to it !
