22” radiator, do they keep up

I think everyone has a different experience with cooling . I have a 318 A/C rad in front of my 383 and it won't cool worth a crap , goes up to 230* after 5 minutes running . I'm just trying to inform our members there are basic things that need to be done . I don't want members to throw money away on the next trick of the week or , even worse , use substandard parts and have an engine failure . information is your friend .