Would I be able to drive it for a while until I can put the bigger bars in or would it not be streetable? And I'm glad you like it. I've had it since I was 9 and I've been restoring it for the past few years :glasses7:
Sure you can drive it as is for awhile with /6 bars and maybe forever. Lots of cars used to drive around with light bars on the street to get weight transfer on launch. Just don't get too aggressive right from the get go until you see how it handles and what its limitations are.
Chrysler used to have a standard /6 T-bar.
But I've read from reliable sources that if a /6 car came equipped with A/C then it usually was upgraded to the base V-8 sized T-bar to handle the increased front end weight. So being down south, where A/C cars were more common, you may have a heavier bar than you think. Possibly the standard 318 or 273 bar.
Easiest way to figure out exactly what you have is measure the diameter of the bar with a micrometer or calipers. (heavy paint, if present, will affect the reading) Or look at the end of the bar at the crossmember directly under the seat area. See if you can read the 3 digit number stamped on the flat of the hex end. By the way, there is a different number for right and left. The 3 digits are the last 3 numbers of the part number for that T-bar.
Either way, then it's easy to figure out what you presently have by looking for charts here and elsewhere and you can go from there.