Hello first, How far can I go with the power and the torque until the serialpleuel give up my mind? Have now at 300HP and strive for bigger things. Have made nn K26 suitable and improved the flow in the head. 2 split pumps, compartments, adjustable pressure regulator, group A without cat, large LLK, thick pipes, No wastegate, chic pop-off, the pistons should be “long good” for 400HP according to the local dealer. But with the connecting rods he was not so sure …. But was ready to supply me with the necessary material, at the worst price. Does not want to increase his wealth now, therefore the question whether the parts are necessary Will not shoot a racing stick, is the everyday car of my wife. Unfortunately I only had to deal with Lancia turbo engines, and there was still a good deal at the charging pressure, without which something gave in to the engine. Thanks for your help and support. Greetings of the JACKY