You do realize a USAC ford focus is a sealed motor..that's the whole point to the series...there was a online engine manual when s.c.r.e.a.m was lic. to sell the motors...i installed one for a friend and if you don't do it as sugested in the manual ..i believe you'll fail...buy a motor kit- or a race ready car for cheap and be done with it..in Ca, race ready car $10000-$11000.... please post a picture of a midget direct mount rear wheel..never heard of one...good luck