Merry Christmas everybody! So this has been happening ever since I've owned the car - while I'm driving, anything in between a "tiny bit of throttle" and "foot to the floor" is just bogged down. Like if I give it half throttle it sputters and jumps. I thought maybe it was running really rich so I checked the spark plugs, but they look normal to me. My guess is that its a carb/tuning problem, but I'm no good with SU carbs haha. It's a 1981 Clubman 1275GT with I think an HIF44. Thanks for the help!
-Austin