The choke you use depends on your target rather than the type of shotgun. For example: if you are shooting skeet, you would use improved or modified cylinder, but if you are shooting trap, you would use full choke.
It is not recommended to shoot slugs with a power pack chock on a JC Higgins model.
Try e-gunparts.com
Same choke tube as a 1200 or 1400 pump
$125
gunshop@nctv.com
You will need to identify the manufacturer of the gun since JC Higgins was a Sears brand for guns they sold.
Enter a search on eBay or Guns America, or Auction Arms. What you want will come up, then bid on it. Or, contact a gunsmith and have him find one for you.
wiring diagram of electronic choke in tube light
Not unless you have to change the choke tube.
choke is connected in series not parallel.lol
Try want ads, gun shows, e-gunparts.com, gun shops
Yes, You can change the barrel. I would suggest sending it to Briley or another reputable choke tube manufacturer to have it changed to the briley or win choke removable choke tube. You can also purchase a rifle sight, slug barrle for under $250.00 from most retailors