1991 Indy 500, Mukuni 38 roundslides. Problem is that the ball end of the cable that hooks into the throttle slide keeps pulling out. The cables are hooked into the slides in the groove in the ball end and the looking plate rotated over to hold it in. Happens on both sides! Any ideas, cabled too tight, loose, not being hooked in correctly? The cable moves very easily not binding. Isn't tight when the bars are turned either way. You knoe soon as it happens, engine just boggs out. Any help or ideas are greatly appreciated!