2:7? gear set?

You got it. Be sure when and if you order parts for your specific case to let the vendor know which case you have. Gear sets(ring and pinion) can be had is several different ratios. Heres a tip. If you take it apart be sure to remember where the shims came from during disassembly and how many of what thickness there were. If you have never done this procedure before you may want to invest is a book from Randys. The right tools is always a blessing.
Small Block
Thank you so much for the advice. I will take it all in. again much appreciated.