((IUpgradeManagement)returnStack.getItem()).setSpeedMultiplier(mgmt.getSpeedMultiplier(inventory[2]), returnStack);
inventory[2] = null;
inventory[3] = returnStack;
recipeType = toSet.ordinal();
gasTank.setGas(null);
worldObj.notifyBlocksOfNeighborChange(xCoord, yCoord, zCoord, getBlockType());
MekanismUtils.saveChunk(this);