What in there now is more than enough! I run a Standard lx101 in my dart sport 360. Its a hot little motor! 292 mopar purple shaft, 3.91's out back 850 thermoquad on a Victor 340 intake. 340 X-heads etc.. it's a mean machine. Doesn't miss a beat!!!
I just recently installed same problem solver bushings. All I did was use a rubber mallet to open/spread outer tabs out. In went control arms. Still went in snug but their in!