I sold my 97 XX engine to a guy in New Orleans, So I went down there and fitted the engine within his frame (his XX had been under water) anyway, I asked him how fast was his xx, (not digital instruments) he told me about 230MPH!!!!!!!!!!!!!!!!!!!!
I said NO WAY, then he showed me his gearing, 16 front 37 rear!!!!
He had the 37 tooth rear specially made, so I guess he maybe telling the truth!