I am sick of running standard management on my 8vt I use td04 Eco red injectors no lambda type early ecu with co adjust fuel plug turned round to 91 adjust fpr set to 4.0 bar boost only 0.5 ish. Problem if I plant the throttle I see lag and 17.4 Afr danger. If I feather the throttle it stays around 12.0afr and boosts well I know I need to get my standalone mapped but omex is very expensive to map. £550 at noble Motorsport. So for now I have to make do with my standard management. Is it worth while fitting a fifth injector to cure this problem for the time being or will my standard ecu work with any bigger injectors other than Eco reds I have sum Saab red 340cc per min any good. ? Please help as I have toasted 5 head gaskets now due to high speed/coolant temp/ lean running at top end.