Yes quite correct its on a Gt30 now, just does not need any more power than 560bhp in this weight of car, though we still keep a 9000rpm limit. With the GT30 gives a 4000 - 8500rpm power band which suits the car well and the ability to rev to 9000rpm helps in sprinting, as sometimes its quicker to hang onto a gear rather than shifting.
New engine is an evolution of the old unit, running a Gt4088r derivative, custom manifolds, (4 into 1 exhaust, my own inlet), short stroke bottom end, big valve head with 30mm inlet ports, 29mm exhaust ports, larger valve inserts in head allowing 38mm inlet valves, 33mm exhaust valves, 296Deg/12.8mm lift solid cams, all usual custom bits and pieces like special water pump for reduced cavitation at high rpm, twin 3" exhaust, 2.5" wastegate exhaust, keeping original quad cosworth intercooler and charge cooler, etc etc. Should make around 720bhp.
Here's a pic of the old girl.........