hello all when first had my saph if i reved it in nutral out of gear it would bounce of the rev limiter and the dump valve would blow of but over the years it dont do this now as in blow the dump valve of when driving it it still pulls like it should in every gear but gets into the limiter at 4.500 same when its reved in nutral its into the limiter at 4.500 wont go any higher its stg 1 chipped fully serviced done the trigger gap thingey in the dizzy fuel pump wiring head gasket ive just bought a new fuel pump today also got a group a coil to go on a new idle control valve to put on as well i forgot to say that the dump valve blows of when driving should the rev counter be getting into the red or is the rev c shafted i havent done all this to try and over come this this problem some of these parts are being changed because it makes a 30 yr old cossie more reliable timming is spot on i changsd the ammal valve a few yrs ago your thoughts would be great im a mechanic by trade but no f..k all about the tuneing side of things