HO455, Thank you for the kind words. Kind of refreshing to see a kid interested in more than the tuners. Most of the younger bunch at work wouldn't know what to do with points, don't even mention tuning multple carbs...
Onward... Tires are decent brand since they are Firestones but how much tread is left? Old school checkis take a penney. If you can see the top of the head, you need new tires. Better ways to check than that, but it is an easy sanity check. Is the treadwear even across the tire, inside and out?
Full headers are good, but what is the tube and collector diameter. Bigger is not always better.
Blocks can sometimes be challemging to find the numbers. Maybe one of the other guys has a suggestion.
Heads, on the front, if there are 2 half circle at the front driver side, then they are camel humps. Problem is there are different castings. Under the valve cover is an 6, 7 or 8 digit number. This will tell us which ones they are.
I dont ever recall a holley with sparton written on there, but no numbers you can see? Anyone know about that?
Also can't tell much about the distributor, Holley made different ones and each has a different model number.
Try some web searches for some of the unanswered questions. Maybe you can find some info we can use.