Anyone give me any advice as to where to start. I have ran mini sprints 2 yrs and now looking to run ump mod at Salem thundervalley. Very short tight track. I have a 2005 dirtworks underslung car with 3 link. Never even touched a mod so any help will be greatly appreciated

Can you switch the left to 4 link ? Spring on top or swing arm?

No it is underslung pull bar car springs on top of axle