Well, not sure what you're racing, on circle track, the old 2.2L hangs in there, but the Honda's and Fords, and a couple of Toyota's are a little bit of a challenge, work on you're handling first, only way I keep up is I outhandle them
Know the 2.2 and2.4 eccotech are hot, but spendy, am guessing this is your first year of racing, best advice is put it back into good mechanical shape, learn from it, save up some money and put your knowledge, and savings together to get faster the next season. Racing is a lot of fun, but like everything else ya gotta crawl, before you can walk, ya gotta walk before you can run, then after that the checkbook controls everything