Unless someone did the swap already and installed an 8 3/4 your car would have an 8 1/4.
With the right cam choice a stroker could provide really nice midrange power and low range torque I wouldn't go to 3.91's unless I was thinking track car. 3.23's would make for much better cruise anywhere...
Congrats! We have more fun! A 390 stroker out of that 318 would really wake it up. Keep in mind though, a tired 8 1/4 rear won't like that kind of torque during hard launches without some considerable money thrown at it. Look into an 8 3/4 out of a Coronet, Charger, Satellite etc etc. They are...
Neat. The hood scoops need to go. Some classy luxury styled wheels would be a big improvement too. If I loved it and wanted it bad, Id pay 10k and make the changes I mentioned. Its always worth what you are comfortable spending unless you want to make money or break even someday.
Cars & Concepts modified the Super Coupes as well. Mine has the sticker but its barely legible. There is a guy working to have these printed blank so the dates can be stamped on them. Here is a really clear example of one.
Hey all. Just picked up this SuperCoupe last week. It's been in the back of my mind since 2001 when I regretfully sold my Plymouth Super Coupe that I had to someday find another one. I'll be 50 in a couple months and figured the time is now. The wife pushing me that it was time surely helped...